31294125 has 24 divisors (see below), whose sum is σ = 56414904. Its totient is φ = 16689600.

The previous prime is 31294117. The next prime is 31294129. The reversal of 31294125 is 52149213.

It can be written as a sum of positive squares in 4 ways, for example, as 1022121 + 30272004 = 1011^2 + 5502^2 .

It is not a de Polignac number, because 31294125 - 2³ = 31294117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31294129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12784 + ... + 15033.

It is an arithmetic number, because the mean of its divisors is an integer number (2350621).

Almost surely, 2^31294125 is an apocalyptic number.

It is an amenable number.

31294125 is a deficient number, since it is larger than the sum of its proper divisors (25120779).

31294125 is a wasteful number, since it uses less digits than its factorization.

31294125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27838 (or 27825 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 31294125 is about 5594.1152115415. The cubic root of 31294125 is about 315.1284434619.

The spelling of 31294125 in words is "thirty-one million, two hundred ninety-four thousand, one hundred twenty-five".