313775915 has 4 divisors (see below), whose sum is σ = 376531104. Its totient is φ = 251020728.

The previous prime is 313775881. The next prime is 313775921. The reversal of 313775915 is 519577313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 519577313 = 11971 ⋅43403.

It is a cyclic number.

It is not a de Polignac number, because 313775915 - 2⁸ = 313775659 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 31377587 + ... + 31377596.

It is an arithmetic number, because the mean of its divisors is an integer number (94132776).

Almost surely, 2^313775915 is an apocalyptic number.

313775915 is a deficient number, since it is larger than the sum of its proper divisors (62755189).

313775915 is an equidigital number, since it uses as much as digits as its factorization.

313775915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62755188.

The product of its digits is 99225, while the sum is 41.

The square root of 313775915 is about 17713.7210941123. The cubic root of 313775915 is about 679.5267143508.

The spelling of 313775915 in words is "three hundred thirteen million, seven hundred seventy-five thousand, nine hundred fifteen".