1481

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Number

$1481$ (one thousand, four hundred and eighty-one) is:

The $234$th prime number.

The larger of the $25$th pair of primes whose prime gap is $10$:

$1481 - 1471 = 10$

The smaller of the $49$th pair of twin primes:

$1483 - 1481 = 2$

The $49$th Sophie Germain prime after $2$, $3$, $5$, $11$, $23$, $29$, $41$, $\ldots$, $1031$, $1049$, $1103$, $1223$, $1229$, $1289$, $1409$, $1439$, $1451$:

$2 \times 1481 + 1 = 2963$, which is prime.

Also see

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