108128199 has 4 divisors (see below), whose sum is σ = 144170936. Its totient is φ = 72085464.

The previous prime is 108128191. The next prime is 108128201. The reversal of 108128199 is 991821801.

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

It is not a de Polignac number, because 108128199 - 2³ = 108128191 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108128191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18021364 + ... + 18021369.

It is an arithmetic number, because the mean of its divisors is an integer number (36042734).

Almost surely, 2^108128199 is an apocalyptic number.

108128199 is a deficient number, since it is larger than the sum of its proper divisors (36042737).

108128199 is an equidigital number, since it uses as much as digits as its factorization.

108128199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36042736.

The product of its (nonzero) digits is 10368, while the sum is 39.

The square root of 108128199 is about 10398.4709933721. The cubic root of 108128199 is about 476.4086699971.

The spelling of 108128199 in words is "one hundred eight million, one hundred twenty-eight thousand, one hundred ninety-nine".