2139057372 has 12 divisors (see below), whose sum is σ = 4991133896. Its totient is φ = 713019120.

The previous prime is 2139057359. The next prime is 2139057421. The reversal of 2139057372 is 2737509312.

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 2139057372.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89127379 + ... + 89127402.

Almost surely, 2^2139057372 is an apocalyptic number.

It is an amenable number.

2139057372 is an abundant number, since it is smaller than the sum of its proper divisors (2852076524).

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

2139057372 is a wasteful number, since it uses less digits than its factorization.

2139057372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178254788 (or 178254786 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 2139057372 is about 46249.9445621289. The cubic root of 2139057372 is about 1288.4695051260.

The spelling of 2139057372 in words is "two billion, one hundred thirty-nine million, fifty-seven thousand, three hundred seventy-two".