318140793 has 12 divisors (see below), whose sum is σ = 459944368. Its totient is φ = 211905720.

The previous prime is 318140773. The next prime is 318140813. The reversal of 318140793 is 397041813.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (318140773) and next prime (318140813).

It is not a de Polignac number, because 318140793 - 2⁶ = 318140729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (318140773) 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 11 ways as a sum of consecutive naturals, for example, 4555 + ... + 25632.

Almost surely, 2^318140793 is an apocalyptic number.

It is an amenable number.

318140793 is a deficient number, since it is larger than the sum of its proper divisors (141803575).

318140793 is a wasteful number, since it uses less digits than its factorization.

318140793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31364 (or 31361 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 318140793 is about 17836.5017029686. The cubic root of 318140793 is about 682.6631385568.

The spelling of 318140793 in words is "three hundred eighteen million, one hundred forty thousand, seven hundred ninety-three".