2105844053 has 4 divisors (see below), whose sum is σ = 2105957280. Its totient is φ = 2105730828.

The previous prime is 2105844049. The next prime is 2105844079. The reversal of 2105844053 is 3504485012.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2105844053 - 2² = 2105844049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105843053) 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, 21425 + ... + 68342.

It is an arithmetic number, because the mean of its divisors is an integer number (526489320).

Almost surely, 2^2105844053 is an apocalyptic number.

It is an amenable number.

2105844053 is a deficient number, since it is larger than the sum of its proper divisors (113227).

2105844053 is an equidigital number, since it uses as much as digits as its factorization.

2105844053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113226.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 2105844053 is about 45889.4764951617. The cubic root of 2105844053 is about 1281.7659651575.

The spelling of 2105844053 in words is "two billion, one hundred five million, eight hundred forty-four thousand, fifty-three".