2125289172 has 12 divisors (see below), whose sum is σ = 4959008096. Its totient is φ = 708429720.

The previous prime is 2125289143. The next prime is 2125289191. The reversal of 2125289172 is 2719825212.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2125289172.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88553704 + ... + 88553727.

Almost surely, 2^2125289172 is an apocalyptic number.

It is an amenable number.

2125289172 is an abundant number, since it is smaller than the sum of its proper divisors (2833718924).

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

2125289172 is a wasteful number, since it uses less digits than its factorization.

2125289172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177107438 (or 177107436 counting only the distinct ones).

The product of its digits is 40320, while the sum is 39.

The square root of 2125289172 is about 46100.8586904843. The cubic root of 2125289172 is about 1285.6991097539.

The spelling of 2125289172 in words is "two billion, one hundred twenty-five million, two hundred eighty-nine thousand, one hundred seventy-two".