2100708156 has 48 divisors (see below), whose sum is σ = 5209414560. Its totient is φ = 656578560.

The previous prime is 2100708133. The next prime is 2100708187. The reversal of 2100708156 is 6518070012.

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 15 ways as a sum of consecutive naturals, for example, 35736 + ... + 74016.

It is an arithmetic number, because the mean of its divisors is an integer number (108529470).

Almost surely, 2^2100708156 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 2100708156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2604707280).

2100708156 is an abundant number, since it is smaller than the sum of its proper divisors (3108706404).

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

2100708156 is a wasteful number, since it uses less digits than its factorization.

2100708156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38574 (or 38572 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 2100708156 is about 45833.4829136953. The cubic root of 2100708156 is about 1280.7230932261.

Adding to 2100708156 its reverse (6518070012), we get a palindrome (8618778168).

The spelling of 2100708156 in words is "two billion, one hundred million, seven hundred eight thousand, one hundred fifty-six".