2170125172 has 24 divisors (see below), whose sum is σ = 3880848384. Its totient is φ = 1061339232.

The previous prime is 2170125151. The next prime is 2170125173. The reversal of 2170125172 is 2715210712.

2170125172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2170125172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2170125173) 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, 523773 + ... + 527899.

It is an arithmetic number, because the mean of its divisors is an integer number (161702016).

Almost surely, 2^2170125172 is an apocalyptic number.

It is an amenable number.

2170125172 is a deficient number, since it is larger than the sum of its proper divisors (1710723212).

2170125172 is a wasteful number, since it uses less digits than its factorization.

2170125172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6975 (or 6973 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 2170125172 is about 46584.6023059122. The cubic root of 2170125172 is about 1294.6774830283.

Adding to 2170125172 its reverse (2715210712), we get a palindrome (4885335884).

The spelling of 2170125172 in words is "two billion, one hundred seventy million, one hundred twenty-five thousand, one hundred seventy-two".