18108162 has 54 divisors (see below), whose sum is σ = 42396393. Its totient is φ = 5584704.

The previous prime is 18108149. The next prime is 18108163. The reversal of 18108162 is 26180181.

It can be written as a sum of positive squares in 2 ways, for example, as 16573041 + 1535121 = 4071^2 + 1239^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3009.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (18108163) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 306889 + ... + 306947.

Almost surely, 2^18108162 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18108162

18108162 is an abundant number, since it is smaller than the sum of its proper divisors (24288231).

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

18108162 is a wasteful number, since it uses less digits than its factorization.

18108162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 18108162 is about 4255.3686091806. The cubic root of 18108162 is about 262.5980259744.

The spelling of 18108162 in words is "eighteen million, one hundred eight thousand, one hundred sixty-two".