318744853 has 12 divisors (see below), whose sum is σ = 379410240. Its totient is φ = 266854392.

The previous prime is 318744793. The next prime is 318744857. The reversal of 318744853 is 358447813.

It is a de Polignac number, because none of the positive numbers 2^k-318744853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318744857) 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, 73533 + ... + 77746.

It is an arithmetic number, because the mean of its divisors is an integer number (31617520).

Almost surely, 2^318744853 is an apocalyptic number.

It is an amenable number.

318744853 is a deficient number, since it is larger than the sum of its proper divisors (60665387).

318744853 is a wasteful number, since it uses less digits than its factorization.

318744853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151336 (or 151329 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 318744853 is about 17853.4269259434. The cubic root of 318744853 is about 683.0949272368.

The spelling of 318744853 in words is "three hundred eighteen million, seven hundred forty-four thousand, eight hundred fifty-three".