318966601 has 2 divisors, whose sum is σ = 318966602. Its totient is φ = 318966600.

The previous prime is 318966587. The next prime is 318966611. The reversal of 318966601 is 106669813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167676601 + 151290000 = 12949^2 + 12300^2 .

It is an emirp because it is prime and its reverse (106669813) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 318966601 - 2¹¹ = 318964553 is a prime.

It is not a weakly prime, because it can be changed into another prime (318966611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159483300 + 159483301.

It is an arithmetic number, because the mean of its divisors is an integer number (159483301).

Almost surely, 2^318966601 is an apocalyptic number.

It is an amenable number.

318966601 is a deficient number, since it is larger than the sum of its proper divisors (1).

318966601 is an equidigital number, since it uses as much as digits as its factorization.

318966601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 318966601 is about 17859.6360825186. The cubic root of 318966601 is about 683.2532982342.

The spelling of 318966601 in words is "three hundred eighteen million, nine hundred sixty-six thousand, six hundred one".