2105752194 has 128 divisors (see below), whose sum is σ = 5794951680. Its totient is φ = 551930112.

The previous prime is 2105752171. The next prime is 2105752211. The reversal of 2105752194 is 4912575012.

It is a Curzon number.

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, 848884 + ... + 851360.

It is an arithmetic number, because the mean of its divisors is an integer number (45273060).

Almost surely, 2^2105752194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2105752194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2897475840).

2105752194 is an abundant number, since it is smaller than the sum of its proper divisors (3689199486).

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

2105752194 is a wasteful number, since it uses less digits than its factorization.

2105752194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2681 (or 2675 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 2105752194 is about 45888.4756120750. The cubic root of 2105752194 is about 1281.7473275869.

The spelling of 2105752194 in words is "two billion, one hundred five million, seven hundred fifty-two thousand, one hundred ninety-four".