170959 has 4 divisors (see below), whose sum is σ = 178416. Its totient is φ = 163504.

The previous prime is 170957. The next prime is 170971. The reversal of 170959 is 959071.

170959 = 37² + 38² + ... + 82².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 959071 = 251 ⋅3821.

It is a cyclic number.

It is not a de Polignac number, because 170959 - 2¹ = 170957 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 170959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170953) 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, 3694 + ... + 3739.

It is an arithmetic number, because the mean of its divisors is an integer number (44604).

2¹⁷⁰⁹⁵⁹ is an apocalyptic number.

170959 is a deficient number, since it is larger than the sum of its proper divisors (7457).

170959 is an equidigital number, since it uses as much as digits as its factorization.

170959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7456.

The product of its (nonzero) digits is 2835, while the sum is 31.

The square root of 170959 is about 413.4718853804. The cubic root of 170959 is about 55.5005546031.

The spelling of 170959 in words is "one hundred seventy thousand, nine hundred fifty-nine".