12318718 has 8 divisors (see below), whose sum is σ = 19074240. Its totient is φ = 5960640.

The previous prime is 12318703. The next prime is 12318763. The reversal of 12318718 is 81781321.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 12318718.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99283 + ... + 99406.

It is an arithmetic number, because the mean of its divisors is an integer number (2384280).

Almost surely, 2^12318718 is an apocalyptic number.

12318718 is a deficient number, since it is larger than the sum of its proper divisors (6755522).

12318718 is a wasteful number, since it uses less digits than its factorization.

12318718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198722.

The product of its digits is 2688, while the sum is 31.

The square root of 12318718 is about 3509.8031283820. The cubic root of 12318718 is about 230.9520586654.

The spelling of 12318718 in words is "twelve million, three hundred eighteen thousand, seven hundred eighteen".