173055 has 16 divisors (see below), whose sum is σ = 282240. Its totient is φ = 90528.

The previous prime is 173053. The next prime is 173059. The reversal of 173055 is 550371.

It is a happy number.

It is a Cunningham number, because it is equal to 416²-1.

It is not a de Polignac number, because 173055 - 2¹ = 173053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1176 + ... + 1314.

It is an arithmetic number, because the mean of its divisors is an integer number (17640).

2¹⁷³⁰⁵⁵ is an apocalyptic number.

173055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

173055 is a deficient number, since it is larger than the sum of its proper divisors (109185).

173055 is a wasteful number, since it uses less digits than its factorization.

173055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230.

The product of its (nonzero) digits is 525, while the sum is 21.

The square root of 173055 is about 415.9987980752. The cubic root of 173055 is about 55.7264508047.

The spelling of 173055 in words is "one hundred seventy-three thousand, fifty-five".