318314357 has 2 divisors, whose sum is σ = 318314358. Its totient is φ = 318314356.

The previous prime is 318314323. The next prime is 318314363. The reversal of 318314357 is 753413813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 313962961 + 4351396 = 17719^2 + 2086^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-318314357 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318314377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159157178 + 159157179.

It is an arithmetic number, because the mean of its divisors is an integer number (159157179).

Almost surely, 2^318314357 is an apocalyptic number.

It is an amenable number.

318314357 is a deficient number, since it is larger than the sum of its proper divisors (1).

318314357 is an equidigital number, since it uses as much as digits as its factorization.

318314357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 318314357 is about 17841.3664555157. The cubic root of 318314357 is about 682.7872599177.

The spelling of 318314357 in words is "three hundred eighteen million, three hundred fourteen thousand, three hundred fifty-seven".