791318133 has 32 divisors (see below), whose sum is σ = 1188422400. Its totient is φ = 520344000.

The previous prime is 791318117. The next prime is 791318147. The reversal of 791318133 is 331813197.

It is not a de Polignac number, because 791318133 - 2⁴ = 791318117 is a prime.

It is a super-2 number, since 2×791318133² = 1252368775229211378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791318113) 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 in 31 ways as a sum of consecutive naturals, for example, 1196823 + ... + 1197483.

It is an arithmetic number, because the mean of its divisors is an integer number (37138200).

Almost surely, 2^791318133 is an apocalyptic number.

It is an amenable number.

791318133 is a deficient number, since it is larger than the sum of its proper divisors (397104267).

791318133 is a wasteful number, since it uses less digits than its factorization.

791318133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210 (or 1204 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 791318133 is about 28130.3774059290. The cubic root of 791318133 is about 924.9474069927.

The spelling of 791318133 in words is "seven hundred ninety-one million, three hundred eighteen thousand, one hundred thirty-three".