253112431 has 16 divisors (see below), whose sum is σ = 299214720. Its totient is φ = 211079520.

The previous prime is 253112423. The next prime is 253112443. The reversal of 253112431 is 134211352.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 253112431 - 2³ = 253112423 is a prime.

It is a super-2 number, since 2×253112431² = 128131805453459522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253113431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17880 + ... + 28738.

It is an arithmetic number, because the mean of its divisors is an integer number (18700920).

Almost surely, 2^253112431 is an apocalyptic number.

253112431 is a deficient number, since it is larger than the sum of its proper divisors (46102289).

253112431 is a wasteful number, since it uses less digits than its factorization.

253112431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11046.

The product of its digits is 720, while the sum is 22.

The square root of 253112431 is about 15909.5075662322. The cubic root of 253112431 is about 632.5640285757.

Adding to 253112431 its reverse (134211352), we get a palindrome (387323783).

The spelling of 253112431 in words is "two hundred fifty-three million, one hundred twelve thousand, four hundred thirty-one".