313055865 has 12 divisors (see below), whose sum is σ = 542630244. Its totient is φ = 166963104.

The previous prime is 313055851. The next prime is 313055891. The reversal of 313055865 is 568550313.

It can be written as a sum of positive squares in 2 ways, for example, as 141419664 + 171636201 = 11892^2 + 13101^2 .

It is not a de Polignac number, because 313055865 - 2¹⁵ = 313023097 is a prime.

It is a super-2 number, since 2×313055865² = 196007949221796450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3478354 + ... + 3478443.

It is an arithmetic number, because the mean of its divisors is an integer number (45219187).

Almost surely, 2^313055865 is an apocalyptic number.

It is an amenable number.

313055865 is a deficient number, since it is larger than the sum of its proper divisors (229574379).

313055865 is a wasteful number, since it uses less digits than its factorization.

313055865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6956808 (or 6956805 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 313055865 is about 17693.3847807592. The cubic root of 313055865 is about 679.0065257488.

The spelling of 313055865 in words is "three hundred thirteen million, fifty-five thousand, eight hundred sixty-five".