2105735809 has 8 divisors (see below), whose sum is σ = 2114098688. Its totient is φ = 2097390240.

The previous prime is 2105735803. The next prime is 2105735833. The reversal of 2105735809 is 9085375012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2105735809 - 2⁵ = 2105735777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2105735803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273604 + ... + 281194.

It is an arithmetic number, because the mean of its divisors is an integer number (264262336).

Almost surely, 2^2105735809 is an apocalyptic number.

It is an amenable number.

2105735809 is a deficient number, since it is larger than the sum of its proper divisors (8362879).

2105735809 is an equidigital number, since it uses as much as digits as its factorization.

2105735809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8655.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 2105735809 is about 45888.2970810641. The cubic root of 2105735809 is about 1281.7440031241.

The spelling of 2105735809 in words is "two billion, one hundred five million, seven hundred thirty-five thousand, eight hundred nine".