2139100600 has 144 divisors (see below), whose sum is σ = 6155431920. Its totient is φ = 676915200.

The previous prime is 2139100589. The next prime is 2139100631. The reversal of 2139100600 is 60019312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 232080 + ... + 241120.

It is an arithmetic number, because the mean of its divisors is an integer number (42746055).

Almost surely, 2^2139100600 is an apocalyptic number.

2139100600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2139100600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3077715960).

2139100600 is an abundant number, since it is smaller than the sum of its proper divisors (4016331320).

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

2139100600 is a wasteful number, since it uses less digits than its factorization.

2139100600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9090 (or 9068 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 2139100600 is about 46250.4118900578. The cubic root of 2139100600 is about 1288.4781845854.

Adding to 2139100600 its reverse (60019312), we get a palindrome (2199119912).

The spelling of 2139100600 in words is "two billion, one hundred thirty-nine million, one hundred thousand, six hundred".