313615399 has 2 divisors, whose sum is σ = 313615400. Its totient is φ = 313615398.

The previous prime is 313615397. The next prime is 313615427. The reversal of 313615399 is 993516313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313615399 - 2¹ = 313615397 is a prime.

Together with 313615397, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313615397) 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, 156807699 + 156807700.

It is an arithmetic number, because the mean of its divisors is an integer number (156807700).

Almost surely, 2^313615399 is an apocalyptic number.

313615399 is a deficient number, since it is larger than the sum of its proper divisors (1).

313615399 is an equidigital number, since it uses as much as digits as its factorization.

313615399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65610, while the sum is 40.

The square root of 313615399 is about 17709.1896765493. The cubic root of 313615399 is about 679.4108211186.

The spelling of 313615399 in words is "three hundred thirteen million, six hundred fifteen thousand, three hundred ninety-nine".