318136337 has 2 divisors, whose sum is σ = 318136338. Its totient is φ = 318136336.

The previous prime is 318136327. The next prime is 318136339. The reversal of 318136337 is 733631813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234212416 + 83923921 = 15304^2 + 9161^2 .

It is a cyclic number.

It is not a de Polignac number, because 318136337 - 2⁴ = 318136321 is a prime.

Together with 318136339, 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 = 318136297 and 318136306.

It is not a weakly prime, because it can be changed into another prime (318136339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159068168 + 159068169.

It is an arithmetic number, because the mean of its divisors is an integer number (159068169).

Almost surely, 2^318136337 is an apocalyptic number.

It is an amenable number.

318136337 is a deficient number, since it is larger than the sum of its proper divisors (1).

318136337 is an equidigital number, since it uses as much as digits as its factorization.

318136337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 35.

The square root of 318136337 is about 17836.3767901443. The cubic root of 318136337 is about 682.6599513294.

The spelling of 318136337 in words is "three hundred eighteen million, one hundred thirty-six thousand, three hundred thirty-seven".