313131325 has 12 divisors (see below), whose sum is σ = 418151188. Its totient is φ = 231235200.

The previous prime is 313131317. The next prime is 313131331. The reversal of 313131325 is 523131313.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 71453209 + 241678116 = 8453^2 + 15546^2 .

It is not a de Polignac number, because 313131325 - 2³ = 313131317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313131296 and 313131305.

It is a congruent number.

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, 481416 + ... + 482065.

Almost surely, 2^313131325 is an apocalyptic number.

It is an amenable number.

313131325 is a deficient number, since it is larger than the sum of its proper divisors (105019863).

313131325 is a wasteful number, since it uses less digits than its factorization.

313131325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963504 (or 963499 counting only the distinct ones).

The product of its digits is 810, while the sum is 22.

The square root of 313131325 is about 17695.5170876694. The cubic root of 313131325 is about 679.0610780102.

Adding to 313131325 its reverse (523131313), we get a palindrome (836262638).

The spelling of 313131325 in words is "three hundred thirteen million, one hundred thirty-one thousand, three hundred twenty-five".