3131285716 has 12 divisors (see below), whose sum is σ = 5901269332. Its totient is φ = 1445208768.

The previous prime is 3131285693. The next prime is 3131285719. The reversal of 3131285716 is 6175821313.

It can be written as a sum of positive squares in 2 ways, for example, as 489736900 + 2641548816 = 22130^2 + 51396^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131285719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30108465 + ... + 30108568.

Almost surely, 2^3131285716 is an apocalyptic number.

It is an amenable number.

3131285716 is a deficient number, since it is larger than the sum of its proper divisors (2769983616).

3131285716 is a wasteful number, since it uses less digits than its factorization.

3131285716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60217050 (or 60217048 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 3131285716 is about 55957.8923477288. The cubic root of 3131285716 is about 1462.9884550148.

The spelling of 3131285716 in words is "three billion, one hundred thirty-one million, two hundred eighty-five thousand, seven hundred sixteen".