264375931 has 2 divisors, whose sum is σ = 264375932. Its totient is φ = 264375930.

The previous prime is 264375929. The next prime is 264375973. The reversal of 264375931 is 139573462.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264375931 - 2¹ = 264375929 is a prime.

It is a super-2 number, since 2×264375931² = 139789265784233522, which contains 22 as substring.

Together with 264375929, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (264375131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132187965 + 132187966.

It is an arithmetic number, because the mean of its divisors is an integer number (132187966).

Almost surely, 2^264375931 is an apocalyptic number.

264375931 is the 10284-th centered pentagonal number.

264375931 is a deficient number, since it is larger than the sum of its proper divisors (1).

264375931 is an equidigital number, since it uses as much as digits as its factorization.

264375931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 40.

The square root of 264375931 is about 16259.6411707024. The cubic root of 264375931 is about 641.8112194561.

The spelling of 264375931 in words is "two hundred sixty-four million, three hundred seventy-five thousand, nine hundred thirty-one".