2139102492 has 48 divisors (see below), whose sum is σ = 5026516992. Its totient is φ = 708014080.

The previous prime is 2139102481. The next prime is 2139102527. The reversal of 2139102492 is 2942019312.

It is a super-2 number, since 2×2139102492² = 9151518942561220128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1180267 + ... + 1182077.

It is an arithmetic number, because the mean of its divisors is an integer number (104719104).

Almost surely, 2^2139102492 is an apocalyptic number.

It is an amenable number.

2139102492 is an abundant number, since it is smaller than the sum of its proper divisors (2887414500).

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

2139102492 is a wasteful number, since it uses less digits than its factorization.

2139102492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2458 (or 2456 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 2139102492 is about 46250.4323439252. The cubic root of 2139102492 is about 1288.4785644647.

The spelling of 2139102492 in words is "two billion, one hundred thirty-nine million, one hundred two thousand, four hundred ninety-two".