170459109 has 6 divisors (see below), whose sum is σ = 246218726. Its totient is φ = 113639400.

The previous prime is 170459063. The next prime is 170459137. The reversal of 170459109 is 901954071.

It can be written as a sum of positive squares in only one way, i.e., 168428484 + 2030625 = 12978^2 + 1425^2 .

It is not a de Polignac number, because 170459109 - 2¹² = 170455013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170459209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9469942 + ... + 9469959.

Almost surely, 2^170459109 is an apocalyptic number.

It is an amenable number.

170459109 is a deficient number, since it is larger than the sum of its proper divisors (75759617).

170459109 is a wasteful number, since it uses less digits than its factorization.

170459109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18939907 (or 18939904 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 170459109 is about 13055.9989659926. The cubic root of 170459109 is about 554.4640650621.

The spelling of 170459109 in words is "one hundred seventy million, four hundred fifty-nine thousand, one hundred nine".