18156 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is a plaindrome in base 14.
It is a nialpdrome in base 12.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 18156.
It is an unprimeable number.
218156 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 18156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22680).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18156 is a wasteful number, since it uses less digits than its factorization.
18156 is an evil number, because the sum of its binary digits is even.
The square root of 18156 is about 134.7442021016. The cubic root of 18156 is about 26.2829065774.
The spelling of 18156 in words is "eighteen thousand, one hundred fifty-six".