313959157 has 2 divisors, whose sum is σ = 313959158. Its totient is φ = 313959156.

The previous prime is 313959109. The next prime is 313959187. The reversal of 313959157 is 751959313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232074756 + 81884401 = 15234^2 + 9049^2 .

It is a cyclic number.

It is not a de Polignac number, because 313959157 - 2⁷ = 313959029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313959187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156979578 + 156979579.

It is an arithmetic number, because the mean of its divisors is an integer number (156979579).

Almost surely, 2^313959157 is an apocalyptic number.

It is an amenable number.

313959157 is a deficient number, since it is larger than the sum of its proper divisors (1).

313959157 is an equidigital number, since it uses as much as digits as its factorization.

313959157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127575, while the sum is 43.

The square root of 313959157 is about 17718.8926572740. The cubic root of 313959157 is about 679.6589675471.

The spelling of 313959157 in words is "three hundred thirteen million, nine hundred fifty-nine thousand, one hundred fifty-seven".