2135120052 has 96 divisors (see below), whose sum is σ = 5491825920. Its totient is φ = 641571840.

The previous prime is 2135120047. The next prime is 2135120069. The reversal of 2135120052 is 2500215312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2322849 + ... + 2323767.

It is an arithmetic number, because the mean of its divisors is an integer number (57206520).

Almost surely, 2^2135120052 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 2135120052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2745912960).

2135120052 is an abundant number, since it is smaller than the sum of its proper divisors (3356705868).

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

2135120052 is a wasteful number, since it uses less digits than its factorization.

2135120052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273 (or 1271 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2135120052 is about 46207.3592839928. The cubic root of 2135120052 is about 1287.6784662528.

Adding to 2135120052 its reverse (2500215312), we get a palindrome (4635335364).

The spelling of 2135120052 in words is "two billion, one hundred thirty-five million, one hundred twenty thousand, fifty-two".