318318349 has 2 divisors, whose sum is σ = 318318350. Its totient is φ = 318318348.

The previous prime is 318318331. The next prime is 318318359. The reversal of 318318349 is 943813813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 317481124 + 837225 = 17818^2 + 915^2 .

It is a cyclic number.

It is not a de Polignac number, because 318318349 - 2⁵ = 318318317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318318359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159159174 + 159159175.

It is an arithmetic number, because the mean of its divisors is an integer number (159159175).

Almost surely, 2^318318349 is an apocalyptic number.

It is an amenable number.

318318349 is a deficient number, since it is larger than the sum of its proper divisors (1).

318318349 is an equidigital number, since it uses as much as digits as its factorization.

318318349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 40.

The square root of 318318349 is about 17841.4783300039. The cubic root of 318318349 is about 682.7901141982.

The spelling of 318318349 in words is "three hundred eighteen million, three hundred eighteen thousand, three hundred forty-nine".