170173 has 4 divisors (see below), whose sum is σ = 171360. Its totient is φ = 168988.

The previous prime is 170167. The next prime is 170179. The reversal of 170173 is 371071.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (170167) and next prime (170179).

It is a cyclic number.

It is not a de Polignac number, because 170173 - 2⁵ = 170141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 170173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343 + ... + 676.

It is an arithmetic number, because the mean of its divisors is an integer number (42840).

2¹⁷⁰¹⁷³ is an apocalyptic number.

It is an amenable number.

170173 is a deficient number, since it is larger than the sum of its proper divisors (1187).

170173 is a wasteful number, since it uses less digits than its factorization.

170173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186.

The product of its (nonzero) digits is 147, while the sum is 19.

The square root of 170173 is about 412.5203025307. The cubic root of 170173 is about 55.4153675866.

It can be divided in two parts, 17017 and 3, that added together give a triangular number (17020 = T₁₈₄).

The spelling of 170173 in words is "one hundred seventy thousand, one hundred seventy-three", and thus it is an iban number.