108128198 has 8 divisors (see below), whose sum is σ = 169244208. Its totient is φ = 51713464.

The previous prime is 108128191. The next prime is 108128201. The reversal of 108128198 is 891821801.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1175261 + ... + 1175352.

It is an arithmetic number, because the mean of its divisors is an integer number (21155526).

Almost surely, 2^108128198 is an apocalyptic number.

108128198 is a deficient number, since it is larger than the sum of its proper divisors (61116010).

108128198 is a wasteful number, since it uses less digits than its factorization.

108128198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2350638.

The product of its (nonzero) digits is 9216, while the sum is 38.

The square root of 108128198 is about 10398.4709452881. The cubic root of 108128198 is about 476.4086685285.

Adding to 108128198 its reverse (891821801), we get a palindrome (999949999).

The spelling of 108128198 in words is "one hundred eight million, one hundred twenty-eight thousand, one hundred ninety-eight".