173136985 has 16 divisors (see below), whose sum is σ = 247769856. Its totient is φ = 113560128.

The previous prime is 173136967. The next prime is 173136991. The reversal of 173136985 is 589631371.

173136985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 173136985 - 2⁹ = 173136473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106734 + ... + 108343.

It is an arithmetic number, because the mean of its divisors is an integer number (15485616).

Almost surely, 2^173136985 is an apocalyptic number.

It is an amenable number.

173136985 is a deficient number, since it is larger than the sum of its proper divisors (74632871).

173136985 is a wasteful number, since it uses less digits than its factorization.

173136985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215112.

The product of its digits is 136080, while the sum is 43.

The square root of 173136985 is about 13158.1527958905. The cubic root of 173136985 is about 557.3524957148.

The spelling of 173136985 in words is "one hundred seventy-three million, one hundred thirty-six thousand, nine hundred eighty-five".