2099519 has 4 divisors (see below), whose sum is σ = 2210040. Its totient is φ = 1989000.

The previous prime is 2099507. The next prime is 2099521. The reversal of 2099519 is 9159902.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9159902 = 2 ⋅4579951.

It is a cyclic number.

It is not a de Polignac number, because 2099519 - 2⁸ = 2099263 is a prime.

It is a super-2 number, since 2×2099519² = 8815960062722, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2099549) 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, 55232 + ... + 55269.

It is an arithmetic number, because the mean of its divisors is an integer number (552510).

2^2099519 is an apocalyptic number.

2099519 is a deficient number, since it is larger than the sum of its proper divisors (110521).

2099519 is a wasteful number, since it uses less digits than its factorization.

2099519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110520.

The product of its (nonzero) digits is 7290, while the sum is 35.

The square root of 2099519 is about 1448.9717043476. The cubic root of 2099519 is about 128.0481386319.

The spelling of 2099519 in words is "two million, ninety-nine thousand, five hundred nineteen".