313213825 has 6 divisors (see below), whose sum is σ = 388385174. Its totient is φ = 250571040.

The previous prime is 313213819. The next prime is 313213829. The reversal of 313213825 is 528312313.

It can be written as a sum of positive squares in 3 ways, for example, as 36590401 + 276623424 = 6049^2 + 16632^2 .

It is not a de Polignac number, because 313213825 - 2¹⁹ = 312689537 is a prime.

It is a super-2 number, since 2×313213825² = 196205800342261250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313213793 and 313213802.

It is not an unprimeable number, because it can be changed into a prime (313213829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6264252 + ... + 6264301.

Almost surely, 2^313213825 is an apocalyptic number.

It is an amenable number.

313213825 is a deficient number, since it is larger than the sum of its proper divisors (75171349).

313213825 is a wasteful number, since it uses less digits than its factorization.

313213825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12528563 (or 12528558 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 313213825 is about 17697.8480330237. The cubic root of 313213825 is about 679.1207096675.

The spelling of 313213825 in words is "three hundred thirteen million, two hundred thirteen thousand, eight hundred twenty-five".