2105156130 has 192 divisors, whose sum is σ = 6480051840. Its totient is φ = 432768000.

The previous prime is 2105156113. The next prime is 2105156173. The reversal of 2105156130 is 316515012.

It is a self number, because there is not a number n which added to its sum of digits gives 2105156130.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1632526 + ... + 1633814.

It is an arithmetic number, because the mean of its divisors is an integer number (33750270).

Almost surely, 2^2105156130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2105156130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3240025920).

2105156130 is an abundant number, since it is smaller than the sum of its proper divisors (4374895710).

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

2105156130 is a wasteful number, since it uses less digits than its factorization.

2105156130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425 (or 1418 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 2105156130 is about 45881.9804498454. The cubic root of 2105156130 is about 1281.6263770559.

The spelling of 2105156130 in words is "two billion, one hundred five million, one hundred fifty-six thousand, one hundred thirty".