523135868 has 12 divisors (see below), whose sum is σ = 915981192. Its totient is φ = 261426960.

The previous prime is 523135861. The next prime is 523135909. The reversal of 523135868 is 868531325.

It is a super-2 number, since 2×523135868² = 547342272776226848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523135861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26663 + ... + 41918.

It is an arithmetic number, because the mean of its divisors is an integer number (76331766).

Almost surely, 2^523135868 is an apocalyptic number.

It is an amenable number.

523135868 is a deficient number, since it is larger than the sum of its proper divisors (392845324).

523135868 is a wasteful number, since it uses less digits than its factorization.

523135868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70492 (or 70490 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The square root of 523135868 is about 22872.1636055709. The cubic root of 523135868 is about 805.7583830814.

The spelling of 523135868 in words is "five hundred twenty-three million, one hundred thirty-five thousand, eight hundred sixty-eight".