313814819 has 2 divisors, whose sum is σ = 313814820. Its totient is φ = 313814818.

The previous prime is 313814741. The next prime is 313814827. The reversal of 313814819 is 918418313.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313814819 is a prime.

It is a super-2 number, since 2×313814819² = 196959481248005522, which contains 22 as substring.

It is a Chen prime.

It is equal to p_16959512 and since 313814819 and 16959512 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (313814869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156907409 + 156907410.

It is an arithmetic number, because the mean of its divisors is an integer number (156907410).

Almost surely, 2^313814819 is an apocalyptic number.

313814819 is a deficient number, since it is larger than the sum of its proper divisors (1).

313814819 is an equidigital number, since it uses as much as digits as its factorization.

313814819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 38.

The square root of 313814819 is about 17714.8191918518. The cubic root of 313814819 is about 679.5547972528.

The spelling of 313814819 in words is "three hundred thirteen million, eight hundred fourteen thousand, eight hundred nineteen".