3131870072 has 16 divisors (see below), whose sum is σ = 6127572240. Its totient is φ = 1497850816.

The previous prime is 3131870057. The next prime is 3131870081. The reversal of 3131870072 is 2700781313.

It is a super-2 number, since 2×3131870072² = 19617220295778570368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8510333 + ... + 8510700.

It is an arithmetic number, because the mean of its divisors is an integer number (382973265).

Almost surely, 2^3131870072 is an apocalyptic number.

It is an amenable number.

3131870072 is a deficient number, since it is larger than the sum of its proper divisors (2995702168).

3131870072 is a wasteful number, since it uses less digits than its factorization.

3131870072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17021062 (or 17021058 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 3131870072 is about 55963.1134945153. The cubic root of 3131870072 is about 1463.0794562823.

The spelling of 3131870072 in words is "three billion, one hundred thirty-one million, eight hundred seventy thousand, seventy-two".