3131513427 has 16 divisors (see below), whose sum is σ = 4861866240. Its totient is φ = 1755672672.

The previous prime is 3131513419. The next prime is 3131513431. The reversal of 3131513427 is 7243151313.

It is not a de Polignac number, because 3131513427 - 2³ = 3131513419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3131513394 and 3131513403.

It is not an unprimeable number, because it can be changed into a prime (3131513477) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1405677 + ... + 1407902.

It is an arithmetic number, because the mean of its divisors is an integer number (303866640).

Almost surely, 2^3131513427 is an apocalyptic number.

3131513427 is a deficient number, since it is larger than the sum of its proper divisors (1730352813).

3131513427 is a wasteful number, since it uses less digits than its factorization.

3131513427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2813642.

The product of its digits is 7560, while the sum is 30.

The square root of 3131513427 is about 55959.9269745771. The cubic root of 3131513427 is about 1463.0239176032.

The spelling of 3131513427 in words is "three billion, one hundred thirty-one million, five hundred thirteen thousand, four hundred twenty-seven".