3131533450225 has 12 divisors (see below), whose sum is σ = 3893083756380. Its totient is φ = 2498786580800.

The previous prime is 3131533450181. The next prime is 3131533450231. The reversal of 3131533450225 is 5220543351313.

It can be written as a sum of positive squares in 6 ways, for example, as 817897758129 + 2313635692096 = 904377^2 + 1521064^2 .

It is not a de Polignac number, because 3131533450225 - 2¹⁵ = 3131533417457 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160994566 + ... + 161014015.

It is an arithmetic number, because the mean of its divisors is an integer number (324423646365).

Almost surely, 2^{3131533450225} is an apocalyptic number.

It is an amenable number.

3131533450225 is a deficient number, since it is larger than the sum of its proper divisors (761550306155).

3131533450225 is a wasteful number, since it uses less digits than its factorization.

3131533450225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322008980 (or 322008975 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 37.

The spelling of 3131533450225 in words is "three trillion, one hundred thirty-one billion, five hundred thirty-three million, four hundred fifty thousand, two hundred twenty-five".