Adding to 18108 its reverse (80181), we get a palindrome (98289).
It is a happy number.
18108 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (18).
It is a plaindrome in base 16.
It is a congruent number.
It is an unprimeable number.
18108 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
218108 is an apocalyptic number.
18108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18108 is a wasteful number, since it uses less digits than its factorization.
18108 is an evil number, because the sum of its binary digits is even.
The square root of 18108 is about 134.5659689520. The cubic root of 18108 is about 26.2597242884.
The spelling of 18108 in words is "eighteen thousand, one hundred eight".