2105605199 has 2 divisors, whose sum is σ = 2105605200. Its totient is φ = 2105605198.

The previous prime is 2105605189. The next prime is 2105605223. The reversal of 2105605199 is 9915065012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2105605199 - 2²⁸ = 1837169743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2105605109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052802599 + 1052802600.

It is an arithmetic number, because the mean of its divisors is an integer number (1052802600).

Almost surely, 2^2105605199 is an apocalyptic number.

2105605199 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105605199 is an equidigital number, since it uses as much as digits as its factorization.

2105605199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 38.

The square root of 2105605199 is about 45886.8739292622. The cubic root of 2105605199 is about 1281.7175021666.

The spelling of 2105605199 in words is "two billion, one hundred five million, six hundred five thousand, one hundred ninety-nine".