18134188 has 6 divisors (see below), whose sum is σ = 31734836. Its totient is φ = 9067092.

The previous prime is 18134173. The next prime is 18134197. The reversal of 18134188 is 88143181.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2266770 + ... + 2266777.

Almost surely, 2^18134188 is an apocalyptic number.

It is an amenable number.

18134188 is a deficient number, since it is larger than the sum of its proper divisors (13600648).

18134188 is a wasteful number, since it uses less digits than its factorization.

18134188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4533551 (or 4533549 counting only the distinct ones).

The product of its digits is 6144, while the sum is 34.

The square root of 18134188 is about 4258.4255306392. The cubic root of 18134188 is about 262.7237723017.

The spelling of 18134188 in words is "eighteen million, one hundred thirty-four thousand, one hundred eighty-eight".