253345136 has 40 divisors (see below), whose sum is σ = 536577264. Its totient is φ = 114920960.

The previous prime is 253345049. The next prime is 253345151. The reversal of 253345136 is 631543352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107426 + ... + 109758.

Almost surely, 2^253345136 is an apocalyptic number.

It is an amenable number.

253345136 is an abundant number, since it is smaller than the sum of its proper divisors (283232128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253345136 is a wasteful number, since it uses less digits than its factorization.

253345136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2969 (or 2963 counting only the distinct ones).

The product of its digits is 32400, while the sum is 32.

The square root of 253345136 is about 15916.8192802457. The cubic root of 253345136 is about 632.7578235147.

Adding to 253345136 its reverse (631543352), we get a palindrome (884888488).

The spelling of 253345136 in words is "two hundred fifty-three million, three hundred forty-five thousand, one hundred thirty-six".