264894531 has 12 divisors (see below), whose sum is σ = 388220616. Its totient is φ = 160541920.

The previous prime is 264894517. The next prime is 264894533. The reversal of 264894531 is 135498462.

It is not a de Polignac number, because 264894531 - 2⁵ = 264894499 is a prime.

It is a super-2 number, since 2×264894531² = 140338225107419922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (264894533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 364506 + ... + 365231.

It is an arithmetic number, because the mean of its divisors is an integer number (32351718).

Almost surely, 2^264894531 is an apocalyptic number.

264894531 is a deficient number, since it is larger than the sum of its proper divisors (123326085).

264894531 is a wasteful number, since it uses less digits than its factorization.

264894531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729762 (or 729751 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 264894531 is about 16275.5808191290. The cubic root of 264894531 is about 642.2306044569.

It can be divided in two parts, 2648 and 94531, that added together give a palindrome (97179).

The spelling of 264894531 in words is "two hundred sixty-four million, eight hundred ninety-four thousand, five hundred thirty-one".