171065 has 4 divisors (see below), whose sum is σ = 205284. Its totient is φ = 136848.

The previous prime is 171053. The next prime is 171077. The reversal of 171065 is 560171.

171065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (171053) and next prime (171077).

It can be written as a sum of positive squares in 2 ways, for example, as 109561 + 61504 = 331^2 + 248^2 .

It is a cyclic number.

It is not a de Polignac number, because 171065 - 2⁴ = 171049 is a prime.

It is a Duffinian number.

It is a Curzon 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, 17102 + ... + 17111.

It is an arithmetic number, because the mean of its divisors is an integer number (51321).

2¹⁷¹⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

171065 is a deficient number, since it is larger than the sum of its proper divisors (34219).

171065 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 8 representation: 171065 = (516071)₈.

171065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34218.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 171065 is about 413.6000483559. The cubic root of 171065 is about 55.5120229343.

The spelling of 171065 in words is "one hundred seventy-one thousand, sixty-five".