316568401 has 2 divisors, whose sum is σ = 316568402. Its totient is φ = 316568400.

The previous prime is 316568393. The next prime is 316568419. The reversal of 316568401 is 104865613.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167728401 + 148840000 = 12951^2 + 12200^2 .

It is an emirp because it is prime and its reverse (104865613) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 316568401 - 2³ = 316568393 is a prime.

It is not a weakly prime, because it can be changed into another prime (316568471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158284200 + 158284201.

It is an arithmetic number, because the mean of its divisors is an integer number (158284201).

Almost surely, 2^316568401 is an apocalyptic number.

It is an amenable number.

316568401 is a deficient number, since it is larger than the sum of its proper divisors (1).

316568401 is an equidigital number, since it uses as much as digits as its factorization.

316568401 is an evil number, because the sum of its binary digits is even.

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

The square root of 316568401 is about 17792.3691789486. The cubic root of 316568401 is about 681.5366065499.

It can be divided in two parts, 316568 and 401, that added together give a square (316969 = 563²).

The spelling of 316568401 in words is "three hundred sixteen million, five hundred sixty-eight thousand, four hundred one".