109173 has 8 divisors (see below), whose sum is σ = 147136. Its totient is φ = 72000.

The previous prime is 109171. The next prime is 109199. The reversal of 109173 is 371901.

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

It is not a de Polignac number, because 109173 - 2¹ = 109171 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 109173.

It is not an unprimeable number, because it can be changed into a prime (109171) 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, 333 + ... + 573.

It is an arithmetic number, because the mean of its divisors is an integer number (18392).

2¹⁰⁹¹⁷³ is an apocalyptic number.

It is an amenable number.

109173 is a deficient number, since it is larger than the sum of its proper divisors (37963).

109173 is a wasteful number, since it uses less digits than its factorization.

109173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395.

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

The square root of 109173 is about 330.4133774532. The cubic root of 109173 is about 47.7938205045.

It can be divided in two parts, 109 and 173, that added together give a palindrome (282).

The spelling of 109173 in words is "one hundred nine thousand, one hundred seventy-three".