172855113 has 8 divisors (see below), whose sum is σ = 230722176. Its totient is φ = 115112400.

The previous prime is 172855093. The next prime is 172855117. The reversal of 172855113 is 311558271.

172855113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 172855113 - 2¹⁰ = 172854089 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (172855117) 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, 27793 + ... + 33438.

It is an arithmetic number, because the mean of its divisors is an integer number (28840272).

Almost surely, 2^172855113 is an apocalyptic number.

It is an amenable number.

172855113 is a deficient number, since it is larger than the sum of its proper divisors (57867063).

172855113 is an equidigital number, since it uses as much as digits as its factorization.

172855113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62175.

The product of its digits is 8400, while the sum is 33.

The square root of 172855113 is about 13147.4375069821. The cubic root of 172855113 is about 557.0498694534.

The spelling of 172855113 in words is "one hundred seventy-two million, eight hundred fifty-five thousand, one hundred thirteen".