18331134 has 16 divisors (see below), whose sum is σ = 38819088. Its totient is φ = 5750912.

The previous prime is 18331127. The next prime is 18331147. The reversal of 18331134 is 43113381.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89757 + ... + 89960.

It is an arithmetic number, because the mean of its divisors is an integer number (2426193).

Almost surely, 2^18331134 is an apocalyptic number.

18331134 is an abundant number, since it is smaller than the sum of its proper divisors (20487954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18331134 is a wasteful number, since it uses less digits than its factorization.

18331134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179739.

The product of its digits is 864, while the sum is 24.

The square root of 18331134 is about 4281.4873583838. The cubic root of 18331134 is about 263.6714519435.

The spelling of 18331134 in words is "eighteen million, three hundred thirty-one thousand, one hundred thirty-four".