2119899 has 4 divisors (see below), whose sum is σ = 2826536. Its totient is φ = 1413264.

The previous prime is 2119879. The next prime is 2119907. The reversal of 2119899 is 9989112.

It is a happy number.

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

It is not a de Polignac number, because 2119899 - 2⁸ = 2119643 is a prime.

It is a D-number.

It is a Duffinian number.

2119899 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2119829) 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, 353314 + ... + 353319.

It is an arithmetic number, because the mean of its divisors is an integer number (706634).

2^2119899 is an apocalyptic number.

2119899 is a deficient number, since it is larger than the sum of its proper divisors (706637).

2119899 is an equidigital number, since it uses as much as digits as its factorization.

2119899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706636.

The product of its digits is 11664, while the sum is 39.

The square root of 2119899 is about 1455.9872939006. The cubic root of 2119899 is about 128.4611256791.

The spelling of 2119899 in words is "two million, one hundred nineteen thousand, eight hundred ninety-nine".