172125163 has 8 divisors (see below), whose sum is σ = 196892928. Its totient is φ = 147402024.

The previous prime is 172125143. The next prime is 172125193. The reversal of 172125163 is 361521271.

It is a happy number.

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

It is not a de Polignac number, because 172125163 - 2⁵ = 172125131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172125133) 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, 2431 + ... + 18712.

It is an arithmetic number, because the mean of its divisors is an integer number (24611616).

Almost surely, 2^172125163 is an apocalyptic number.

172125163 is a deficient number, since it is larger than the sum of its proper divisors (24767765).

172125163 is a wasteful number, since it uses less digits than its factorization.

172125163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22313.

The product of its digits is 2520, while the sum is 28.

The square root of 172125163 is about 13119.6479754603. The cubic root of 172125163 is about 556.2646409815.

The spelling of 172125163 in words is "one hundred seventy-two million, one hundred twenty-five thousand, one hundred sixty-three".