253431213 has 32 divisors (see below), whose sum is σ = 397267200. Its totient is φ = 140714496.

The previous prime is 253431197. The next prime is 253431239. The reversal of 253431213 is 312134352.

It is not a de Polignac number, because 253431213 - 2⁴ = 253431197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253431413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120273 + ... + 122361.

It is an arithmetic number, because the mean of its divisors is an integer number (12414600).

Almost surely, 2^253431213 is an apocalyptic number.

It is an amenable number.

253431213 is a deficient number, since it is larger than the sum of its proper divisors (143835987).

253431213 is a wasteful number, since it uses less digits than its factorization.

253431213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261.

The product of its digits is 2160, while the sum is 24.

The square root of 253431213 is about 15919.5230142112. The cubic root of 253431213 is about 632.8294777131.

Adding to 253431213 its reverse (312134352), we get a palindrome (565565565).

The spelling of 253431213 in words is "two hundred fifty-three million, four hundred thirty-one thousand, two hundred thirteen".