265495131 has 32 divisors (see below), whose sum is σ = 439568640. Its totient is φ = 156974400.

The previous prime is 265495117. The next prime is 265495133. The reversal of 265495131 is 131594562.

It is not a de Polignac number, because 265495131 - 2¹³ = 265486939 is a prime.

It is a super-2 number, since 2×265495131² = 140975329169414322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (265495133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1276 + ... + 23078.

It is an arithmetic number, because the mean of its divisors is an integer number (13736520).

Almost surely, 2^265495131 is an apocalyptic number.

265495131 is a deficient number, since it is larger than the sum of its proper divisors (174073509).

265495131 is a wasteful number, since it uses less digits than its factorization.

265495131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21864 (or 21858 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 265495131 is about 16294.0213268548. The cubic root of 265495131 is about 642.7156183061.

The spelling of 265495131 in words is "two hundred sixty-five million, four hundred ninety-five thousand, one hundred thirty-one".