18061132 has 12 divisors (see below), whose sum is σ = 31988376. Its totient is φ = 8921600.

The previous prime is 18061111. The next prime is 18061163. The reversal of 18061132 is 23116081.

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, 26869 + ... + 27532.

It is an arithmetic number, because the mean of its divisors is an integer number (2665698).

Almost surely, 2^18061132 is an apocalyptic number.

It is an amenable number.

18061132 is a deficient number, since it is larger than the sum of its proper divisors (13927244).

18061132 is a wasteful number, since it uses less digits than its factorization.

18061132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54488 (or 54486 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 18061132 is about 4249.8390557761. The cubic root of 18061132 is about 262.3704915199.

The spelling of 18061132 in words is "eighteen million, sixty-one thousand, one hundred thirty-two".