2105159112 has 256 divisors, whose sum is σ = 7102464000. Its totient is φ = 564350976.

The previous prime is 2105159071. The next prime is 2105159137. The reversal of 2105159112 is 2119515012.

2105159112 is a `hidden beast` number, since 2 + 10 + 51 + 591 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3648168 + ... + 3648744.

It is an arithmetic number, because the mean of its divisors is an integer number (27744000).

Almost surely, 2^2105159112 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 2105159112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3551232000).

2105159112 is an abundant number, since it is smaller than the sum of its proper divisors (4997304888).

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

2105159112 is a wasteful number, since it uses less digits than its factorization.

2105159112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

The square root of 2105159112 is about 45882.0129462516. The cubic root of 2105159112 is about 1281.6269822063.

The spelling of 2105159112 in words is "two billion, one hundred five million, one hundred fifty-nine thousand, one hundred twelve".