3131082872 has 8 divisors (see below), whose sum is σ = 5870780400. Its totient is φ = 1565541432.

The previous prime is 3131082841. The next prime is 3131082893. The reversal of 3131082872 is 2782801313.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195692672 + ... + 195692687.

It is an arithmetic number, because the mean of its divisors is an integer number (733847550).

Almost surely, 2^3131082872 is an apocalyptic number.

It is an amenable number.

3131082872 is a deficient number, since it is larger than the sum of its proper divisors (2739697528).

3131082872 is a wasteful number, since it uses less digits than its factorization.

3131082872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391385365 (or 391385361 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 3131082872 is about 55956.0798483954. The cubic root of 3131082872 is about 1462.9568636426.

The spelling of 3131082872 in words is "three billion, one hundred thirty-one million, eighty-two thousand, eight hundred seventy-two".