316975561 has 16 divisors (see below), whose sum is σ = 371606400. Its totient is φ = 270256560.

The previous prime is 316975543. The next prime is 316975609. The reversal of 316975561 is 165579613.

It is a happy number.

It is not a de Polignac number, because 316975561 - 2¹¹ = 316973513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316975261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65226 + ... + 69916.

It is an arithmetic number, because the mean of its divisors is an integer number (23225400).

Almost surely, 2^316975561 is an apocalyptic number.

It is an amenable number.

316975561 is a deficient number, since it is larger than the sum of its proper divisors (54630839).

316975561 is an equidigital number, since it uses as much as digits as its factorization.

316975561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4909 (or 4895 counting only the distinct ones).

The product of its digits is 170100, while the sum is 43.

The square root of 316975561 is about 17803.8074860407. The cubic root of 316975561 is about 681.8286714567.

The spelling of 316975561 in words is "three hundred sixteen million, nine hundred seventy-five thousand, five hundred sixty-one".