2188099 has 2 divisors, whose sum is σ = 2188100. Its totient is φ = 2188098.

The previous prime is 2188061. The next prime is 2188111. The reversal of 2188099 is 9908812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2188099 - 2⁷ = 2187971 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2188049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094049 + 1094050.

It is an arithmetic number, because the mean of its divisors is an integer number (1094050).

2^2188099 is an apocalyptic number.

2188099 is a deficient number, since it is larger than the sum of its proper divisors (1).

2188099 is an equidigital number, since it uses as much as digits as its factorization.

2188099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 2188099 is about 1479.2224308737. Note that the first 3 decimals coincide. The cubic root of 2188099 is about 129.8242002419.

The spelling of 2188099 in words is "two million, one hundred eighty-eight thousand, ninety-nine".