264434531 has 4 divisors (see below), whose sum is σ = 264467064. Its totient is φ = 264402000.

The previous prime is 264434503. The next prime is 264434587. The reversal of 264434531 is 135434462.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 264434531 - 2¹⁸ = 264172387 is a prime.

It is a super-2 number, since 2×264434531² = 139851242370379922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264434501) 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 in 3 ways as a sum of consecutive naturals, for example, 7556 + ... + 24206.

It is an arithmetic number, because the mean of its divisors is an integer number (66116766).

Almost surely, 2^264434531 is an apocalyptic number.

264434531 is a deficient number, since it is larger than the sum of its proper divisors (32533).

264434531 is a wasteful number, since it uses less digits than its factorization.

264434531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32532.

The product of its digits is 34560, while the sum is 32.

The square root of 264434531 is about 16261.4430786447. The cubic root of 264434531 is about 641.8586359750.

Adding to 264434531 its reverse (135434462), we get a palindrome (399868993).

The spelling of 264434531 in words is "two hundred sixty-four million, four hundred thirty-four thousand, five hundred thirty-one".