2139102522 has 24 divisors (see below), whose sum is σ = 4636689876. Its totient is φ = 712731456.

The previous prime is 2139102481. The next prime is 2139102527. The reversal of 2139102522 is 2252019312.

It is a happy number.

2139102522 is a `hidden beast` number, since 2 + 1 + 39 + 102 + 522 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1851494841 + 287607681 = 43029^2 + 16959^2 .

It is not an unprimeable number, because it can be changed into a prime (2139102527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20598 + ... + 68574.

Almost surely, 2^2139102522 is an apocalyptic number.

2139102522 is an abundant number, since it is smaller than the sum of its proper divisors (2497587354).

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

2139102522 is a wasteful number, since it uses less digits than its factorization.

2139102522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50462 (or 50459 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2139102522 is about 46250.4326682465. The cubic root of 2139102522 is about 1288.4785704881.

The spelling of 2139102522 in words is "two billion, one hundred thirty-nine million, one hundred two thousand, five hundred twenty-two".