2139099156 has 72 divisors (see below), whose sum is σ = 5650829184. Its totient is φ = 681609600.

The previous prime is 2139099143. The next prime is 2139099161. The reversal of 2139099156 is 6519909312.

It is a happy number.

2139099156 is a `hidden beast` number, since 21 + 390 + 99 + 156 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58056 + ... + 87456.

Almost surely, 2^2139099156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2139099156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2825414592).

2139099156 is an abundant number, since it is smaller than the sum of its proper divisors (3511730028).

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

2139099156 is a wasteful number, since it uses less digits than its factorization.

2139099156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29501 (or 29496 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The square root of 2139099156 is about 46250.3962793834. The cubic root of 2139099156 is about 1288.4778946562.

The spelling of 2139099156 in words is "two billion, one hundred thirty-nine million, ninety-nine thousand, one hundred fifty-six".