173109613 has 16 divisors (see below), whose sum is σ = 182072880. Its totient is φ = 164376576.

The previous prime is 173109593. The next prime is 173109617. The reversal of 173109613 is 316901371.

173109613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1447209 + 171662404 = 1203^2 + 13102^2 .

It is a cyclic number.

It is not a de Polignac number, because 173109613 - 2¹⁷ = 172978541 is a prime.

It is a super-2 number, since 2×173109613² = 59933876226019538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173109617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 878631 + ... + 878827.

It is an arithmetic number, because the mean of its divisors is an integer number (11379555).

Almost surely, 2^173109613 is an apocalyptic number.

It is an amenable number.

173109613 is a deficient number, since it is larger than the sum of its proper divisors (8963267).

173109613 is a wasteful number, since it uses less digits than its factorization.

173109613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 173109613 is about 13157.1126391773. The cubic root of 173109613 is about 557.3231227176.

The spelling of 173109613 in words is "one hundred seventy-three million, one hundred nine thousand, six hundred thirteen".