164185 has 8 divisors (see below), whose sum is σ = 225216. Its totient is φ = 112560.

The previous prime is 164183. The next prime is 164191. The reversal of 164185 is 581461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164185 - 2¹ = 164183 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (164183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2311 + ... + 2380.

It is an arithmetic number, because the mean of its divisors is an integer number (28152).

2¹⁶⁴¹⁸⁵ is an apocalyptic number.

It is an amenable number.

164185 is a deficient number, since it is larger than the sum of its proper divisors (61031).

164185 is an equidigital number, since it uses as much as digits as its factorization.

164185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4703.

The product of its digits is 960, while the sum is 25.

The square root of 164185 is about 405.1974827168. The cubic root of 164185 is about 54.7576110295.

The spelling of 164185 in words is "one hundred sixty-four thousand, one hundred eighty-five".