18170 has 16 divisors (see below), whose sum is σ = 34560. Its totient is φ = 6864.

The previous prime is 18169. The next prime is 18181. The reversal of 18170 is 7181.

It is a Curzon number.

It is a plaindrome in base 14.

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191 + ... + 269.

It is an arithmetic number, because the mean of its divisors is an integer number (2160).

2¹⁸¹⁷⁰ is an apocalyptic number.

18170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18170 is a deficient number, since it is larger than the sum of its proper divisors (16390).

18170 is a wasteful number, since it uses less digits than its factorization.

18170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 18170 is about 134.7961423780. The cubic root of 18170 is about 26.2896603807.

The spelling of 18170 in words is "eighteen thousand, one hundred seventy".