316564081 has 4 divisors (see below), whose sum is σ = 316668132. Its totient is φ = 316460032.

The previous prime is 316564069. The next prime is 316564099. The reversal of 316564081 is 180465613.

It is a happy number.

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 163200625 + 153363456 = 12775^2 + 12384^2 .

It is a cyclic number.

It is not a de Polignac number, because 316564081 - 2¹⁷ = 316433009 is a prime.

It is a super-2 number, since 2×316564081² = 200425634758749122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316564051) 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, 47320 + ... + 53593.

It is an arithmetic number, because the mean of its divisors is an integer number (79167033).

Almost surely, 2^316564081 is an apocalyptic number.

It is an amenable number.

316564081 is a deficient number, since it is larger than the sum of its proper divisors (104051).

316564081 is a wasteful number, since it uses less digits than its factorization.

316564081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104050.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 316564081 is about 17792.2477781758. The cubic root of 316564081 is about 681.5335063758.

The spelling of 316564081 in words is "three hundred sixteen million, five hundred sixty-four thousand, eighty-one".