2129870158 has 12 divisors (see below), whose sum is σ = 3459464208. Its totient is φ = 983016840.

The previous prime is 2129870131. The next prime is 2129870191. The reversal of 2129870158 is 8510789212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3150358 + ... + 3151033.

It is an arithmetic number, because the mean of its divisors is an integer number (288288684).

Almost surely, 2^2129870158 is an apocalyptic number.

2129870158 is a deficient number, since it is larger than the sum of its proper divisors (1329594050).

2129870158 is a wasteful number, since it uses less digits than its factorization.

2129870158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6301419 (or 6301406 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 43.

The square root of 2129870158 is about 46150.5163351397. The cubic root of 2129870158 is about 1286.6222065618.

The spelling of 2129870158 in words is "two billion, one hundred twenty-nine million, eight hundred seventy thousand, one hundred fifty-eight".