318618343 has 2 divisors, whose sum is σ = 318618344. Its totient is φ = 318618342.

The previous prime is 318618319. The next prime is 318618361. The reversal of 318618343 is 343816813.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 318618343 - 2¹⁷ = 318487271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318618373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159309171 + 159309172.

It is an arithmetic number, because the mean of its divisors is an integer number (159309172).

Almost surely, 2^318618343 is an apocalyptic number.

318618343 is a deficient number, since it is larger than the sum of its proper divisors (1).

318618343 is an equidigital number, since it uses as much as digits as its factorization.

318618343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 37.

The square root of 318618343 is about 17849.8835570432. The cubic root of 318618343 is about 683.0045416989.

It can be divided in two parts, 31861 and 8343, that added together give a palindrome (40204).

The spelling of 318618343 in words is "three hundred eighteen million, six hundred eighteen thousand, three hundred forty-three".