313979065 has 4 divisors (see below), whose sum is σ = 376774884. Its totient is φ = 251183248.

The previous prime is 313979053. The next prime is 313979089. The reversal of 313979065 is 560979313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560979313 = 19 ⋅29525227.

It can be written as a sum of positive squares in 2 ways, for example, as 34821801 + 279157264 = 5901^2 + 16708^2 .

It is a cyclic number.

It is not a de Polignac number, because 313979065 - 2⁷ = 313978937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31397902 + ... + 31397911.

It is an arithmetic number, because the mean of its divisors is an integer number (94193721).

Almost surely, 2^313979065 is an apocalyptic number.

It is an amenable number.

313979065 is a deficient number, since it is larger than the sum of its proper divisors (62795819).

313979065 is an equidigital number, since it uses as much as digits as its factorization.

313979065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62795818.

The product of its (nonzero) digits is 153090, while the sum is 43.

The square root of 313979065 is about 17719.4544216237. The cubic root of 313979065 is about 679.6733328601.

The spelling of 313979065 in words is "three hundred thirteen million, nine hundred seventy-nine thousand, sixty-five".