128793556 has 12 divisors (see below), whose sum is σ = 226458400. Its totient is φ = 64091160.

The previous prime is 128793527. The next prime is 128793607. The reversal of 128793556 is 655397821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75456 + ... + 77143.

Almost surely, 2^128793556 is an apocalyptic number.

It is an amenable number.

128793556 is a deficient number, since it is larger than the sum of its proper divisors (97664844).

128793556 is a wasteful number, since it uses less digits than its factorization.

128793556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152814 (or 152812 counting only the distinct ones).

The product of its digits is 453600, while the sum is 46.

The square root of 128793556 is about 11348.7248622918. The cubic root of 128793556 is about 505.0077520622.

The spelling of 128793556 in words is "one hundred twenty-eight million, seven hundred ninety-three thousand, five hundred fifty-six".