313655881 has 8 divisors (see below), whose sum is σ = 391051584. Its totient is φ = 244407120.

The previous prime is 313655879. The next prime is 313655891. The reversal of 313655881 is 188556313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313655881 - 2¹ = 313655879 is a prime.

It is a super-2 number, since 2×313655881² = 196760023371772322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (313655801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2036650 + ... + 2036803.

It is an arithmetic number, because the mean of its divisors is an integer number (48881448).

Almost surely, 2^313655881 is an apocalyptic number.

It is an amenable number.

313655881 is a deficient number, since it is larger than the sum of its proper divisors (77395703).

313655881 is a wasteful number, since it uses less digits than its factorization.

313655881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4073471.

The product of its digits is 86400, while the sum is 40.

The square root of 313655881 is about 17710.3326055724. The cubic root of 313655881 is about 679.4400530224.

The spelling of 313655881 in words is "three hundred thirteen million, six hundred fifty-five thousand, eight hundred eighty-one".