170913 has 8 divisors (see below), whose sum is σ = 237888. Its totient is φ = 108944.

The previous prime is 170899. The next prime is 170921. The reversal of 170913 is 319071.

170913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 170913 - 2⁵ = 170881 is a prime.

It is a super-2 number, since 2×170913² = 58422507138, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 170913.

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 7 ways as a sum of consecutive naturals, for example, 1170 + ... + 1307.

It is an arithmetic number, because the mean of its divisors is an integer number (29736).

2¹⁷⁰⁹¹³ is an apocalyptic number.

It is an amenable number.

170913 is a deficient number, since it is larger than the sum of its proper divisors (66975).

170913 is a wasteful number, since it uses less digits than its factorization.

170913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503.

The product of its (nonzero) digits is 189, while the sum is 21.

The square root of 170913 is about 413.4162551231. The cubic root of 170913 is about 55.4955763052.

Adding to 170913 its reverse (319071), we get a palindrome (489984).

The spelling of 170913 in words is "one hundred seventy thousand, nine hundred thirteen".