109199 has 2 divisors, whose sum is σ = 109200. Its totient is φ = 109198.

The previous prime is 109171. The next prime is 109201. The reversal of 109199 is 991901.

It is a strong prime.

It is an emirp because it is prime and its reverse (991901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109199 - 2⁸ = 108943 is a prime.

Together with 109201, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 109199.

It is not a weakly prime, because it can be changed into another prime (109139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54599 + 54600.

It is an arithmetic number, because the mean of its divisors is an integer number (54600).

2¹⁰⁹¹⁹⁹ is an apocalyptic number.

109199 is a deficient number, since it is larger than the sum of its proper divisors (1).

109199 is an equidigital number, since it uses as much as digits as its factorization.

109199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 29.

The square root of 109199 is about 330.4527197649. The cubic root of 109199 is about 47.7976143018.

The spelling of 109199 in words is "one hundred nine thousand, one hundred ninety-nine".