313520357 has 2 divisors, whose sum is σ = 313520358. Its totient is φ = 313520356.

The previous prime is 313520323. The next prime is 313520359. The reversal of 313520357 is 753025313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193376836 + 120143521 = 13906^2 + 10961^2 .

It is a cyclic number.

It is not a de Polignac number, because 313520357 - 2⁶ = 313520293 is a prime.

Together with 313520359, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313520359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156760178 + 156760179.

It is an arithmetic number, because the mean of its divisors is an integer number (156760179).

Almost surely, 2^313520357 is an apocalyptic number.

It is an amenable number.

313520357 is a deficient number, since it is larger than the sum of its proper divisors (1).

313520357 is an equidigital number, since it uses as much as digits as its factorization.

313520357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9450, while the sum is 29.

The square root of 313520357 is about 17706.5060641562. The cubic root of 313520357 is about 679.3421817517.

The spelling of 313520357 in words is "three hundred thirteen million, five hundred twenty thousand, three hundred fifty-seven".