2091199 has 8 divisors (see below), whose sum is σ = 2298240. Its totient is φ = 1887000.

The previous prime is 2091191. The next prime is 2091211. The reversal of 2091199 is 9911902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2091199 - 2³ = 2091191 is a prime.

It is a super-2 number, since 2×2091199² = 8746226515202, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2091199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1032 + ... + 2290.

It is an arithmetic number, because the mean of its divisors is an integer number (287280).

2^2091199 is an apocalyptic number.

2091199 is a deficient number, since it is larger than the sum of its proper divisors (207041).

2091199 is a wasteful number, since it uses less digits than its factorization.

2091199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421.

The product of its (nonzero) digits is 1458, while the sum is 31.

The square root of 2091199 is about 1446.0978528440. The cubic root of 2091199 is about 127.8787711253.

It can be divided in two parts, 20 and 91199, that added together give a palindrome (91219).

The spelling of 2091199 in words is "two million, ninety-one thousand, one hundred ninety-nine".