318260401 has 2 divisors, whose sum is σ = 318260402. Its totient is φ = 318260400.

The previous prime is 318260399. The next prime is 318260443. The reversal of 318260401 is 104062813.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189778176 + 128482225 = 13776^2 + 11335^2 .

It is an emirp because it is prime and its reverse (104062813) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 318260401 - 2¹ = 318260399 is a prime.

Together with 318260399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (318269401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159130200 + 159130201.

It is an arithmetic number, because the mean of its divisors is an integer number (159130201).

Almost surely, 2^318260401 is an apocalyptic number.

It is an amenable number.

318260401 is a deficient number, since it is larger than the sum of its proper divisors (1).

318260401 is an equidigital number, since it uses as much as digits as its factorization.

318260401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 318260401 is about 17839.8542875215. The cubic root of 318260401 is about 682.7486790303.

The spelling of 318260401 in words is "three hundred eighteen million, two hundred sixty thousand, four hundred one".