2179125172 has 24 divisors (see below), whose sum is σ = 4380842816. Its totient is φ = 929069568.

The previous prime is 2179125167. The next prime is 2179125209. The reversal of 2179125172 is 2715219712.

It is a happy number.

2179125172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 196218 + ... + 207025.

Almost surely, 2^2179125172 is an apocalyptic number.

It is an amenable number.

2179125172 is an abundant number, since it is smaller than the sum of its proper divisors (2201717644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2179125172 is a wasteful number, since it uses less digits than its factorization.

2179125172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403447 (or 403445 counting only the distinct ones).

The product of its digits is 17640, while the sum is 37.

The square root of 2179125172 is about 46681.1008010737. The cubic root of 2179125172 is about 1296.4647879800.

The spelling of 2179125172 in words is "two billion, one hundred seventy-nine million, one hundred twenty-five thousand, one hundred seventy-two".