18168112 has 20 divisors (see below), whose sum is σ = 35481856. Its totient is φ = 9011520.

The previous prime is 18168109. The next prime is 18168113. The reversal of 18168112 is 21186181.

It is not an unprimeable number, because it can be changed into a prime (18168113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2439 + ... + 6502.

Almost surely, 2^18168112 is an apocalyptic number.

It is an amenable number.

18168112 is a deficient number, since it is larger than the sum of its proper divisors (17313744).

18168112 is a wasteful number, since it uses less digits than its factorization.

18168112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9076 (or 9070 counting only the distinct ones).

The product of its digits is 768, while the sum is 28.

The square root of 18168112 is about 4262.4068318264. The cubic root of 18168112 is about 262.8874978447.

The spelling of 18168112 in words is "eighteen million, one hundred sixty-eight thousand, one hundred twelve".