318425851 has 2 divisors, whose sum is σ = 318425852. Its totient is φ = 318425850.

The previous prime is 318425801. The next prime is 318425857. The reversal of 318425851 is 158524813.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 318425851 - 2²³ = 310037243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 318425851.

It is not a weakly prime, because it can be changed into another prime (318425857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159212925 + 159212926.

It is an arithmetic number, because the mean of its divisors is an integer number (159212926).

Almost surely, 2^318425851 is an apocalyptic number.

318425851 is a deficient number, since it is larger than the sum of its proper divisors (1).

318425851 is an equidigital number, since it uses as much as digits as its factorization.

318425851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38400, while the sum is 37.

The square root of 318425851 is about 17844.4907744659. The cubic root of 318425851 is about 682.8669691681.

The spelling of 318425851 in words is "three hundred eighteen million, four hundred twenty-five thousand, eight hundred fifty-one".