318725419 has 2 divisors, whose sum is σ = 318725420. Its totient is φ = 318725418.

The previous prime is 318725387. The next prime is 318725441. The reversal of 318725419 is 914527813.

It is a strong prime.

It is an emirp because it is prime and its reverse (914527813) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 318725419 - 2⁵ = 318725387 is a prime.

It is a super-2 number, since 2×318725419² = 203171785433451122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (318725819) 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, 159362709 + 159362710.

It is an arithmetic number, because the mean of its divisors is an integer number (159362710).

Almost surely, 2^318725419 is an apocalyptic number.

318725419 is a deficient number, since it is larger than the sum of its proper divisors (1).

318725419 is an equidigital number, since it uses as much as digits as its factorization.

318725419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 40.

The square root of 318725419 is about 17852.8826523898. The cubic root of 318725419 is about 683.0810440985.

The spelling of 318725419 in words is "three hundred eighteen million, seven hundred twenty-five thousand, four hundred nineteen".