31534925 has 12 divisors (see below), whose sum is σ = 39545460. Its totient is φ = 24942720.

The previous prime is 31534913. The next prime is 31534961. The reversal of 31534925 is 52943513.

It can be written as a sum of positive squares in 6 ways, for example, as 320356 + 31214569 = 566^2 + 5587^2 .

It is not a de Polignac number, because 31534925 - 2⁸ = 31534669 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31534891 and 31534900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4862 + ... + 9311.

It is an arithmetic number, because the mean of its divisors is an integer number (3295455).

Almost surely, 2^31534925 is an apocalyptic number.

It is an amenable number.

31534925 is a deficient number, since it is larger than the sum of its proper divisors (8010535).

31534925 is a wasteful number, since it uses less digits than its factorization.

31534925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14272 (or 14267 counting only the distinct ones).

The product of its digits is 16200, while the sum is 32.

The square root of 31534925 is about 5615.5965845135. The cubic root of 31534925 is about 315.9346557457.

The spelling of 31534925 in words is "thirty-one million, five hundred thirty-four thousand, nine hundred twenty-five".