128975104 has 36 divisors (see below), whose sum is σ = 259538944. Its totient is φ = 63963648.

The previous prime is 128975101. The next prime is 128975123. The reversal of 128975104 is 401579821.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (128975101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30529 + ... + 34495.

Almost surely, 2^128975104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128975104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129769472).

128975104 is an abundant number, since it is smaller than the sum of its proper divisors (130563840).

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

128975104 is an equidigital number, since it uses as much as digits as its factorization.

128975104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4110 (or 4096 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 128975104 is about 11356.7206534281. The cubic root of 128975104 is about 505.2449277536.

The spelling of 128975104 in words is "one hundred twenty-eight million, nine hundred seventy-five thousand, one hundred four".