264589531 has 2 divisors, whose sum is σ = 264589532. Its totient is φ = 264589530.

The previous prime is 264589483. The next prime is 264589537. The reversal of 264589531 is 135985462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 264589531 - 2¹⁷ = 264458459 is a prime.

It is a super-2 number, since 2×264589531² = 140015239829599922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (264589537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132294765 + 132294766.

It is an arithmetic number, because the mean of its divisors is an integer number (132294766).

Almost surely, 2^264589531 is an apocalyptic number.

264589531 is a deficient number, since it is larger than the sum of its proper divisors (1).

264589531 is an equidigital number, since it uses as much as digits as its factorization.

264589531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 43.

The square root of 264589531 is about 16266.2082551528. The cubic root of 264589531 is about 641.9840213348.

The spelling of 264589531 in words is "two hundred sixty-four million, five hundred eighty-nine thousand, five hundred thirty-one".