149

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


 * The $35$th prime number


 * The $1$st of the $12$th pair of twin primes, with $151$


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


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


 * The larger of the smallest pair of primes whose prime gap is $10$:
 * $149 - 139 = 10$


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


 * The $5$th term of the $3$rd $5$-tuple of consecutive integers have the property that they are not values of the $\sigma$ function $\sigma \left({n}\right)$ for any $n$:
 * $\left({145, 146, 147, 148, 149}\right)$

Also see