313337161 has 2 divisors, whose sum is σ = 313337162. Its totient is φ = 313337160.

The previous prime is 313337159. The next prime is 313337179. The reversal of 313337161 is 161733313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 309056400 + 4280761 = 17580^2 + 2069^2 .

It is a cyclic number.

It is not a de Polignac number, because 313337161 - 2¹ = 313337159 is a prime.

Together with 313337159, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (313337111) 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, 156668580 + 156668581.

It is an arithmetic number, because the mean of its divisors is an integer number (156668581).

Almost surely, 2^313337161 is an apocalyptic number.

It is an amenable number.

313337161 is a deficient number, since it is larger than the sum of its proper divisors (1).

313337161 is an equidigital number, since it uses as much as digits as its factorization.

313337161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3402, while the sum is 28.

The square root of 313337161 is about 17701.3321815054. The cubic root of 313337161 is about 679.2098383855.

The spelling of 313337161 in words is "three hundred thirteen million, three hundred thirty-seven thousand, one hundred sixty-one".