313725617 has 2 divisors, whose sum is σ = 313725618. Its totient is φ = 313725616.

The previous prime is 313725613. The next prime is 313725631. The reversal of 313725617 is 716527313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 271722256 + 42003361 = 16484^2 + 6481^2 .

It is a cyclic number.

It is not a de Polignac number, because 313725617 - 2² = 313725613 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (313725613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156862808 + 156862809.

It is an arithmetic number, because the mean of its divisors is an integer number (156862809).

Almost surely, 2^313725617 is an apocalyptic number.

It is an amenable number.

313725617 is a deficient number, since it is larger than the sum of its proper divisors (1).

313725617 is an equidigital number, since it uses as much as digits as its factorization.

313725617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26460, while the sum is 35.

The square root of 313725617 is about 17712.3012903462. The cubic root of 313725617 is about 679.4904032346.

The spelling of 313725617 in words is "three hundred thirteen million, seven hundred twenty-five thousand, six hundred seventeen".