2105099 has 4 divisors (see below), whose sum is σ = 2112264. Its totient is φ = 2097936.

The previous prime is 2105071. The next prime is 2105111. The reversal of 2105099 is 9905012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2105099 - 2¹² = 2101003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2105009) 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, 3122 + ... + 3735.

It is an arithmetic number, because the mean of its divisors is an integer number (528066).

2^2105099 is an apocalyptic number.

2105099 is a deficient number, since it is larger than the sum of its proper divisors (7165).

2105099 is an equidigital number, since it uses as much as digits as its factorization.

2105099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7164.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 2105099 is about 1450.8959301066. The cubic root of 2105099 is about 128.1614783303.

The spelling of 2105099 in words is "two million, one hundred five thousand, ninety-nine".