2105907841 has 4 divisors (see below), whose sum is σ = 2173840384. Its totient is φ = 2037975300.

The previous prime is 2105907833. The next prime is 2105907847. The reversal of 2105907841 is 1487095012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2105907841 - 2³ = 2105907833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2105907841.

It is not an unprimeable number, because it can be changed into a prime (2105907847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33966225 + ... + 33966286.

It is an arithmetic number, because the mean of its divisors is an integer number (543460096).

Almost surely, 2^2105907841 is an apocalyptic number.

It is an amenable number.

2105907841 is a deficient number, since it is larger than the sum of its proper divisors (67932543).

2105907841 is an equidigital number, since it uses as much as digits as its factorization.

2105907841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67932542.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 2105907841 is about 45890.1715076333. The cubic root of 2105907841 is about 1281.7789069930.

The spelling of 2105907841 in words is "two billion, one hundred five million, nine hundred seven thousand, eight hundred forty-one".