3131383725 has 48 divisors (see below), whose sum is σ = 5759770240. Its totient is φ = 1667952000.

The previous prime is 3131383693. The next prime is 3131383727. The reversal of 3131383725 is 5273831313.

It is not a de Polignac number, because 3131383725 - 2⁵ = 3131383693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3131383725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131383727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 630000 + ... + 634950.

Almost surely, 2^3131383725 is an apocalyptic number.

It is an amenable number.

3131383725 is a deficient number, since it is larger than the sum of its proper divisors (2628386515).

3131383725 is a wasteful number, since it uses less digits than its factorization.

3131383725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5907 (or 5896 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 3131383725 is about 55958.7680797210. The cubic root of 3131383725 is about 1463.0037186640.

The spelling of 3131383725 in words is "three billion, one hundred thirty-one million, three hundred eighty-three thousand, seven hundred twenty-five".