318474841133 has 2 divisors, whose sum is σ = 318474841134. Its totient is φ = 318474841132.

The previous prime is 318474841049. The next prime is 318474841177. The reversal of 318474841133 is 331148474813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215056642564 + 103418198569 = 463742^2 + 321587^2 .

It is a cyclic number.

It is not a de Polignac number, because 318474841133 - 2⁸ = 318474840877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318474841183) 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, 159237420566 + 159237420567.

It is an arithmetic number, because the mean of its divisors is an integer number (159237420567).

Almost surely, 2^318474841133 is an apocalyptic number.

It is an amenable number.

318474841133 is a deficient number, since it is larger than the sum of its proper divisors (1).

318474841133 is an equidigital number, since it uses as much as digits as its factorization.

318474841133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 47.

The spelling of 318474841133 in words is "three hundred eighteen billion, four hundred seventy-four million, eight hundred forty-one thousand, one hundred thirty-three".