18113132 has 12 divisors (see below), whose sum is σ = 31811976. Its totient is φ = 9024000.

The previous prime is 18113131. The next prime is 18113141. The reversal of 18113132 is 23131181.

It is not an unprimeable number, because it can be changed into a prime (18113131) 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, 6869 + ... + 9132.

It is an arithmetic number, because the mean of its divisors is an integer number (2650998).

Almost surely, 2^18113132 is an apocalyptic number.

It is an amenable number.

18113132 is a deficient number, since it is larger than the sum of its proper divisors (13698844).

18113132 is a wasteful number, since it uses less digits than its factorization.

18113132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16288 (or 16286 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

The square root of 18113132 is about 4255.9525373293. The cubic root of 18113132 is about 262.6220481586.

The spelling of 18113132 in words is "eighteen million, one hundred thirteen thousand, one hundred thirty-two".