2135990900 has 36 divisors (see below), whose sum is σ = 4637203200. Its totient is φ = 854008800.

The previous prime is 2135990897. The next prime is 2135990921. The reversal of 2135990900 is 90995312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 335951 + ... + 342249.

It is an arithmetic number, because the mean of its divisors is an integer number (128811200).

Almost surely, 2^2135990900 is an apocalyptic number.

2135990900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2135990900 is an abundant number, since it is smaller than the sum of its proper divisors (2501212300).

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

2135990900 is a wasteful number, since it uses less digits than its factorization.

2135990900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9704 (or 9697 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 2135990900 is about 46216.7815841822. The cubic root of 2135990900 is about 1287.8535102420.

The spelling of 2135990900 in words is "two billion, one hundred thirty-five million, nine hundred ninety thousand, nine hundred".