318811201 has 2 divisors, whose sum is σ = 318811202. Its totient is φ = 318811200.

The previous prime is 318811187. The next prime is 318811243. The reversal of 318811201 is 102118813.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230432400 + 88378801 = 15180^2 + 9401^2 .

It is a cyclic number.

It is not a de Polignac number, because 318811201 - 2⁵ = 318811169 is a prime.

It is not a weakly prime, because it can be changed into another prime (378811201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159405600 + 159405601.

It is an arithmetic number, because the mean of its divisors is an integer number (159405601).

Almost surely, 2^318811201 is an apocalyptic number.

It is an amenable number.

318811201 is a deficient number, since it is larger than the sum of its proper divisors (1).

318811201 is an equidigital number, since it uses as much as digits as its factorization.

318811201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 318811201 is about 17855.2849599215. The cubic root of 318811201 is about 683.1423202509.

The spelling of 318811201 in words is "three hundred eighteen million, eight hundred eleven thousand, two hundred one".