173085 has 16 divisors (see below), whose sum is σ = 302400. Its totient is φ = 83840.

The previous prime is 173081. The next prime is 173087. The reversal of 173085 is 580371.

It is not a de Polignac number, because 173085 - 2² = 173081 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360 + ... + 689.

It is an arithmetic number, because the mean of its divisors is an integer number (18900).

2¹⁷³⁰⁸⁵ is an apocalyptic number.

173085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

173085 is a deficient number, since it is larger than the sum of its proper divisors (129315).

173085 is a wasteful number, since it uses less digits than its factorization.

173085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 173085 is about 416.0348543091. The cubic root of 173085 is about 55.7296707770.

The spelling of 173085 in words is "one hundred seventy-three thousand, eighty-five".