313315885 has 4 divisors (see below), whose sum is σ = 375979068. Its totient is φ = 250652704.

The previous prime is 313315883. The next prime is 313315903. The reversal of 313315885 is 588513313.

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 250304041 + 63011844 = 15821^2 + 7938^2 .

It is a cyclic number.

It is not a de Polignac number, because 313315885 - 2¹ = 313315883 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 (313315883) 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, 31331584 + ... + 31331593.

It is an arithmetic number, because the mean of its divisors is an integer number (93994767).

Almost surely, 2^313315885 is an apocalyptic number.

It is an amenable number.

313315885 is a deficient number, since it is larger than the sum of its proper divisors (62663183).

313315885 is an equidigital number, since it uses as much as digits as its factorization.

313315885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62663182.

The product of its digits is 43200, while the sum is 37.

The square root of 313315885 is about 17700.7311995861. The cubic root of 313315885 is about 679.1944649610.

The spelling of 313315885 in words is "three hundred thirteen million, three hundred fifteen thousand, eight hundred eighty-five".