128102804 has 12 divisors (see below), whose sum is σ = 225892128. Its totient is φ = 63562200.

The previous prime is 128102791. The next prime is 128102833. The reversal of 128102804 is 408201821.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 121712 + ... + 122759.

It is an arithmetic number, because the mean of its divisors is an integer number (18824344).

Almost surely, 2^128102804 is an apocalyptic number.

It is an amenable number.

128102804 is a deficient number, since it is larger than the sum of its proper divisors (97789324).

128102804 is a wasteful number, since it uses less digits than its factorization.

128102804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244606 (or 244604 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 128102804 is about 11318.2509249442. The cubic root of 128102804 is about 504.1033056484.

The spelling of 128102804 in words is "one hundred twenty-eight million, one hundred two thousand, eight hundred four".