173091055 has 8 divisors (see below), whose sum is σ = 207964800. Its totient is φ = 138302496.

The previous prime is 173091043. The next prime is 173091067. The reversal of 173091055 is 550190371.

173091055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (173091043) and next prime (173091067).

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 173091055 - 2⁷ = 173090927 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16735 + ... + 25024.

It is an arithmetic number, because the mean of its divisors is an integer number (25995600).

Almost surely, 2^173091055 is an apocalyptic number.

173091055 is a deficient number, since it is larger than the sum of its proper divisors (34873745).

173091055 is an equidigital number, since it uses as much as digits as its factorization.

173091055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42593.

The product of its (nonzero) digits is 4725, while the sum is 31.

The square root of 173091055 is about 13156.4073743557. The cubic root of 173091055 is about 557.3032062959.

The spelling of 173091055 in words is "one hundred seventy-three million, ninety-one thousand, fifty-five".