313172001 has 20 divisors (see below), whose sum is σ = 468431172. Its totient is φ = 208510848.

The previous prime is 313171997. The next prime is 313172017. The reversal of 313172001 is 100271313.

It can be written as a sum of positive squares in 2 ways, for example, as 145443600 + 167728401 = 12060^2 + 12951^2 .

It is not a de Polignac number, because 313172001 - 2² = 313171997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (313172021) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 75165 + ... + 79221.

Almost surely, 2^313172001 is an apocalyptic number.

It is an amenable number.

313172001 is a deficient number, since it is larger than the sum of its proper divisors (155259171).

313172001 is an equidigital number, since it uses as much as digits as its factorization.

313172001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5022 (or 5013 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 313172001 is about 17696.6663809883. Note that the first 3 decimals coincide. The cubic root of 313172001 is about 679.0904802559.

The spelling of 313172001 in words is "three hundred thirteen million, one hundred seventy-two thousand, one".