264709531 has 2 divisors, whose sum is σ = 264709532. Its totient is φ = 264709530.

The previous prime is 264709483. The next prime is 264709541. The reversal of 264709531 is 135907462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 264709531 - 2⁹ = 264709019 is a prime.

It is a super-2 number, since 2×264709531² = 140142271604479922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (264709541) 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, 132354765 + 132354766.

It is an arithmetic number, because the mean of its divisors is an integer number (132354766).

Almost surely, 2^264709531 is an apocalyptic number.

264709531 is a deficient number, since it is larger than the sum of its proper divisors (1).

264709531 is an equidigital number, since it uses as much as digits as its factorization.

264709531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 264709531 is about 16269.8964655587. The cubic root of 264709531 is about 642.0810602448.

The spelling of 264709531 in words is "two hundred sixty-four million, seven hundred nine thousand, five hundred thirty-one".