313916965 has 4 divisors (see below), whose sum is σ = 376700364. Its totient is φ = 251133568.

The previous prime is 313916959. The next prime is 313916971. The reversal of 313916965 is 569619313.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (313916959) and next prime (313916971).

It can be written as a sum of positive squares in 2 ways, for example, as 219010401 + 94906564 = 14799^2 + 9742^2 .

It is a cyclic number.

It is not a de Polignac number, because 313916965 - 2²³ = 305528357 is a prime.

It is a super-2 number, since 2×313916965² = 197087721829622450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 31391692 + ... + 31391701.

It is an arithmetic number, because the mean of its divisors is an integer number (94175091).

Almost surely, 2^313916965 is an apocalyptic number.

It is an amenable number.

313916965 is a deficient number, since it is larger than the sum of its proper divisors (62783399).

313916965 is an equidigital number, since it uses as much as digits as its factorization.

313916965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62783398.

The product of its digits is 131220, while the sum is 43.

The square root of 313916965 is about 17717.7020236824. The cubic root of 313916965 is about 679.6285204276.

The spelling of 313916965 in words is "three hundred thirteen million, nine hundred sixteen thousand, nine hundred sixty-five".