128331104 has 48 divisors (see below), whose sum is σ = 277194960. Its totient is φ = 57999360.

The previous prime is 128331089. The next prime is 128331109. The reversal of 128331104 is 401133821.

It is a self number, because there is not a number n which added to its sum of digits gives 128331104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128331109) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 66992 + ... + 68880.

It is an arithmetic number, because the mean of its divisors is an integer number (5774895).

Almost surely, 2^128331104 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 128331104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138597480).

128331104 is an abundant number, since it is smaller than the sum of its proper divisors (148863856).

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

128331104 is a wasteful number, since it uses less digits than its factorization.

128331104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103 (or 2095 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 128331104 is about 11328.3319160413. The cubic root of 128331104 is about 504.4025925776.

Adding to 128331104 its reverse (401133821), we get a palindrome (529464925).

The spelling of 128331104 in words is "one hundred twenty-eight million, three hundred thirty-one thousand, one hundred four".