265296631 has 2 divisors, whose sum is σ = 265296632. Its totient is φ = 265296630.

The previous prime is 265296613. The next prime is 265296637. The reversal of 265296631 is 136692562.

Together with previous prime (265296613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265296631 - 2¹⁷ = 265165559 is a prime.

It is a super-2 number, since 2×265296631² = 140764604839900322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265296637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132648315 + 132648316.

It is an arithmetic number, because the mean of its divisors is an integer number (132648316).

Almost surely, 2^265296631 is an apocalyptic number.

265296631 is a deficient number, since it is larger than the sum of its proper divisors (1).

265296631 is an equidigital number, since it uses as much as digits as its factorization.

265296631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 40.

The square root of 265296631 is about 16287.9289966527. The cubic root of 265296631 is about 642.5554008560. Note that the first 3 decimals are identical.

The spelling of 265296631 in words is "two hundred sixty-five million, two hundred ninety-six thousand, six hundred thirty-one".