2142365172 has 12 divisors (see below), whose sum is σ = 4998852096. Its totient is φ = 714121720.

The previous prime is 2142365167. The next prime is 2142365179. The reversal of 2142365172 is 2715632412.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142365179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89265204 + ... + 89265227.

It is an arithmetic number, because the mean of its divisors is an integer number (416571008).

Almost surely, 2^2142365172 is an apocalyptic number.

It is an amenable number.

2142365172 is an abundant number, since it is smaller than the sum of its proper divisors (2856486924).

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

2142365172 is a wasteful number, since it uses less digits than its factorization.

2142365172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178530438 (or 178530436 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 2142365172 is about 46285.6907909993. The cubic root of 2142365172 is about 1289.1333184607.

Adding to 2142365172 its reverse (2715632412), we get a palindrome (4857997584).

The spelling of 2142365172 in words is "two billion, one hundred forty-two million, three hundred sixty-five thousand, one hundred seventy-two".