128108196 has 48 divisors (see below), whose sum is σ = 343593600. Its totient is φ = 41229216.

The previous prime is 128108179. The next prime is 128108273. The reversal of 128108196 is 691801821.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 128108196.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17320 + ... + 23583.

It is an arithmetic number, because the mean of its divisors is an integer number (7158200).

Almost surely, 2^128108196 is an apocalyptic number.

It is an amenable number.

128108196 is an abundant number, since it is smaller than the sum of its proper divisors (215485404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128108196 is a wasteful number, since it uses less digits than its factorization.

128108196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40945 (or 40937 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

The square root of 128108196 is about 11318.4891217865. The cubic root of 128108196 is about 504.1103783192.

The spelling of 128108196 in words is "one hundred twenty-eight million, one hundred eight thousand, one hundred ninety-six".