128563608 has 16 divisors (see below), whose sum is σ = 321409080. Its totient is φ = 42854528.

The previous prime is 128563549. The next prime is 128563609. The reversal of 128563608 is 806365821.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128563609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2678385 + ... + 2678432.

Almost surely, 2^128563608 is an apocalyptic number.

It is an amenable number.

128563608 is an abundant number, since it is smaller than the sum of its proper divisors (192845472).

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

128563608 is a wasteful number, since it uses less digits than its factorization.

128563608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5356826 (or 5356822 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 128563608 is about 11338.5893302474. The cubic root of 128563608 is about 504.7070260917.

The spelling of 128563608 in words is "one hundred twenty-eight million, five hundred sixty-three thousand, six hundred eight".