313361885 has 4 divisors (see below), whose sum is σ = 376034268. Its totient is φ = 250689504.

The previous prime is 313361869. The next prime is 313361887. The reversal of 313361885 is 588163313.

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

It can be written as a sum of positive squares in 2 ways, for example, as 229401316 + 83960569 = 15146^2 + 9163^2 .

It is a cyclic number.

It is not a de Polignac number, because 313361885 - 2⁴ = 313361869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313361887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31336184 + ... + 31336193.

It is an arithmetic number, because the mean of its divisors is an integer number (94008567).

Almost surely, 2^313361885 is an apocalyptic number.

It is an amenable number.

313361885 is a deficient number, since it is larger than the sum of its proper divisors (62672383).

313361885 is an equidigital number, since it uses as much as digits as its factorization.

313361885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62672382.

The product of its digits is 51840, while the sum is 38.

The square root of 313361885 is about 17702.0305332467. The cubic root of 313361885 is about 679.2277023613.

The spelling of 313361885 in words is "three hundred thirteen million, three hundred sixty-one thousand, eight hundred eighty-five".