253734631 has 4 divisors (see below), whose sum is σ = 255560200. Its totient is φ = 251909064.

The previous prime is 253734599. The next prime is 253734653. The reversal of 253734631 is 136437352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 253734631 - 2⁵ = 253734599 is a prime.

It is a super-2 number, since 2×253734631² = 128762525937412322, 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 (253734671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 912576 + ... + 912853.

It is an arithmetic number, because the mean of its divisors is an integer number (63890050).

Almost surely, 2^253734631 is an apocalyptic number.

253734631 is a deficient number, since it is larger than the sum of its proper divisors (1825569).

253734631 is a wasteful number, since it uses less digits than its factorization.

253734631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1825568.

The product of its digits is 45360, while the sum is 34.

The square root of 253734631 is about 15929.0499088929. The cubic root of 253734631 is about 633.0819265926.

The spelling of 253734631 in words is "two hundred fifty-three million, seven hundred thirty-four thousand, six hundred thirty-one".