313275917 has 2 divisors, whose sum is σ = 313275918. Its totient is φ = 313275916.

The previous prime is 313275913. The next prime is 313275961. The reversal of 313275917 is 719572313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313254601 + 21316 = 17699^2 + 146^2 .

It is a cyclic number.

It is not a de Polignac number, because 313275917 - 2² = 313275913 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313275913) 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, 156637958 + 156637959.

It is an arithmetic number, because the mean of its divisors is an integer number (156637959).

Almost surely, 2^313275917 is an apocalyptic number.

It is an amenable number.

313275917 is a deficient number, since it is larger than the sum of its proper divisors (1).

313275917 is an equidigital number, since it uses as much as digits as its factorization.

313275917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39690, while the sum is 38.

The square root of 313275917 is about 17699.6021706704. The cubic root of 313275917 is about 679.1655833540.

The spelling of 313275917 in words is "three hundred thirteen million, two hundred seventy-five thousand, nine hundred seventeen".