318097937 has 2 divisors, whose sum is σ = 318097938. Its totient is φ = 318097936.

The previous prime is 318097921. The next prime is 318097939. The reversal of 318097937 is 739790813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 303839761 + 14258176 = 17431^2 + 3776^2 .

It is an emirp because it is prime and its reverse (739790813) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 318097937 - 2⁴ = 318097921 is a prime.

Together with 318097939, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 318097891 and 318097900.

It is not a weakly prime, because it can be changed into another prime (318097939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159048968 + 159048969.

It is an arithmetic number, because the mean of its divisors is an integer number (159048969).

Almost surely, 2^318097937 is an apocalyptic number.

It is an amenable number.

318097937 is a deficient number, since it is larger than the sum of its proper divisors (1).

318097937 is an equidigital number, since it uses as much as digits as its factorization.

318097937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 47.

The square root of 318097937 is about 17835.3003058541. The cubic root of 318097937 is about 682.6324838636.

The spelling of 318097937 in words is "three hundred eighteen million, ninety-seven thousand, nine hundred thirty-seven".