31253134 has 16 divisors (see below), whose sum is σ = 51614640. Its totient is φ = 14074560.

The previous prime is 31253083. The next prime is 31253141. The reversal of 31253134 is 43135213.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 4119 + ... + 8914.

It is an arithmetic number, because the mean of its divisors is an integer number (3225915).

Almost surely, 2^31253134 is an apocalyptic number.

31253134 is a deficient number, since it is larger than the sum of its proper divisors (20361506).

31253134 is a wasteful number, since it uses less digits than its factorization.

31253134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13155.

The product of its digits is 1080, while the sum is 22.

The square root of 31253134 is about 5590.4502502035. The cubic root of 31253134 is about 314.9907917019.

Adding to 31253134 its reverse (43135213), we get a palindrome (74388347).

The spelling of 31253134 in words is "thirty-one million, two hundred fifty-three thousand, one hundred thirty-four".