12791318 has 8 divisors (see below), whose sum is σ = 19512360. Its totient is φ = 6287200.

The previous prime is 12791309. The next prime is 12791323. The reversal of 12791318 is 81319721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54083 + ... + 54318.

It is an arithmetic number, because the mean of its divisors is an integer number (2439045).

Almost surely, 2^12791318 is an apocalyptic number.

12791318 is a deficient number, since it is larger than the sum of its proper divisors (6721042).

12791318 is a wasteful number, since it uses less digits than its factorization.

12791318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108462.

The product of its digits is 3024, while the sum is 32.

The square root of 12791318 is about 3576.4952117960. The cubic root of 12791318 is about 233.8685189240.

The spelling of 12791318 in words is "twelve million, seven hundred ninety-one thousand, three hundred eighteen".