149

Previous  ... Next

Number

$149$ (one hundred and forty-nine) is:

The $35$th prime number

The larger of the $1$st pair of primes whose prime gap is $10$:

$149 - 139 = 10$

The $3$rd obstinate number after $1$, $127$

The $5$th term of the $3$rd $5$-tuple of consecutive integers have the property that they are not values of the divisor sum function $\map {\sigma_1} n$ for any $n$:

$\tuple {145, 146, 147, 148, 149}$

The $6$th prime number after $53$, $71$, $103$, $107$, $109$ which cannot be expressed as either the sum of or the difference between a power of $2$ and a power of $3$.

The $11$th emirp after $13$, $17$, $31$, $37$, $71$, $73$, $79$, $97$, $107$, $113$

The smaller of the $12$th pair of twin primes, with $151$

The $13$th long period prime after $7$, $17$, $19$, $23$, $29$, $47$, $59$, $61$, $97$, $109$, $113$, $131$

The $15$th positive integer $n$ after $0$, $1$, $5$, $25$, $29$, $41$, $49$, $61$, $65$, $85$, $89$, $101$, $125$, $145$ such that the Fibonacci number $F_n$ ends in $n$

Also see

• Previous  ... Next: Primes not Sum of or Difference between Powers of 2 and 3
• Previous  ... Next: Emirp
• Previous  ... Next: Obstinate Number
• Previous  ... Next: Long Period Prime
• Previous  ... Next: Prime Number
• Previous  ... Next: Twin Primes
• Previous  ... Next: Prime Gaps of 10
• Previous  ... Next: Sequence of Fibonacci Numbers ending in Index

• Previous: Quintuplets of Consecutive Integers which are not Divisor Sum Values