128104 has 16 divisors (see below), whose sum is σ = 244800. Its totient is φ = 62832.

The previous prime is 128099. The next prime is 128111. The reversal of 128104 is 401821.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417 + ... + 655.

It is an arithmetic number, because the mean of its divisors is an integer number (15300).

2¹²⁸¹⁰⁴ is an apocalyptic number.

It is an amenable number.

128104 is a deficient number, since it is larger than the sum of its proper divisors (116696).

128104 is a wasteful number, since it uses less digits than its factorization.

128104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 128104 is about 357.9161913074. The cubic root of 128104 is about 50.4104874455.

Adding to 128104 its reverse (401821), we get a palindrome (529925).

It can be divided in two parts, 128 and 104, that added together give a palindrome (232).

The spelling of 128104 in words is "one hundred twenty-eight thousand, one hundred four".