2135510800 has 60 divisors (see below), whose sum is σ = 5239771776. Its totient is φ = 836022400.

The previous prime is 2135510717. The next prime is 2135510801. The reversal of 2135510800 is 80155312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (2135510801) 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, 37996 + ... + 75595.

Almost surely, 2^2135510800 is an apocalyptic number.

2135510800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2135510800 is an abundant number, since it is smaller than the sum of its proper divisors (3104260976).

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

2135510800 is a wasteful number, since it uses less digits than its factorization.

2135510800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113656 (or 113645 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 2135510800 is about 46211.5872915008. The cubic root of 2135510800 is about 1287.7570140755.

The spelling of 2135510800 in words is "two billion, one hundred thirty-five million, five hundred ten thousand, eight hundred".