173065 has 4 divisors (see below), whose sum is σ = 207684. Its totient is φ = 138448.

The previous prime is 173059. The next prime is 173081. The reversal of 173065 is 560371.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63504 + 109561 = 252^2 + 331^2 .

It is a cyclic number.

It is not a de Polignac number, because 173065 - 2⁹ = 172553 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17302 + ... + 17311.

It is an arithmetic number, because the mean of its divisors is an integer number (51921).

2¹⁷³⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

173065 is a deficient number, since it is larger than the sum of its proper divisors (34619).

173065 is an equidigital number, since it uses as much as digits as its factorization.

173065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34618.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 173065 is about 416.0108171671. The cubic root of 173065 is about 55.7275241701.

The spelling of 173065 in words is "one hundred seventy-three thousand, sixty-five".