2128199 has 6 divisors (see below), whose sum is σ = 2180736. Its totient is φ = 2076900.

The previous prime is 2128183. The next prime is 2128201. The reversal of 2128199 is 9918212.

It is a happy number.

It is not a de Polignac number, because 2128199 - 2⁴ = 2128183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128099) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1274 + ... + 2424.

It is an arithmetic number, because the mean of its divisors is an integer number (363456).

2^2128199 is an apocalyptic number.

2128199 is a deficient number, since it is larger than the sum of its proper divisors (52537).

2128199 is an equidigital number, since it uses as much as digits as its factorization.

2128199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237 (or 1194 counting only the distinct ones).

The product of its digits is 2592, while the sum is 32.

The square root of 2128199 is about 1458.8348090171. The cubic root of 2128199 is about 128.6285611459.

The spelling of 2128199 in words is "two million, one hundred twenty-eight thousand, one hundred ninety-nine".