109109199 has 4 divisors (see below), whose sum is σ = 145478936. Its totient is φ = 72739464.

The previous prime is 109109177. The next prime is 109109201. The reversal of 109109199 is 991901901.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 109109199 - 2⁵ = 109109167 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 (109109149) 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, 18184864 + ... + 18184869.

It is an arithmetic number, because the mean of its divisors is an integer number (36369734).

Almost surely, 2^109109199 is an apocalyptic number.

109109199 is a deficient number, since it is larger than the sum of its proper divisors (36369737).

109109199 is an equidigital number, since it uses as much as digits as its factorization.

109109199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36369736.

The product of its (nonzero) digits is 6561, while the sum is 39.

The square root of 109109199 is about 10445.5348833844. The cubic root of 109109199 is about 477.8450841040.

The spelling of 109109199 in words is "one hundred nine million, one hundred nine thousand, one hundred ninety-nine".