128659113 has 24 divisors (see below), whose sum is σ = 203164416. Its totient is φ = 77810400.

The previous prime is 128659099. The next prime is 128659121. The reversal of 128659113 is 311956821.

It is not a de Polignac number, because 128659113 - 2⁶ = 128659049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128659123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59023 + ... + 61163.

It is an arithmetic number, because the mean of its divisors is an integer number (8465184).

Almost surely, 2^128659113 is an apocalyptic number.

It is an amenable number.

128659113 is a deficient number, since it is larger than the sum of its proper divisors (74505303).

128659113 is a wasteful number, since it uses less digits than its factorization.

128659113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2765 (or 2762 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 128659113 is about 11342.8000511338. The cubic root of 128659113 is about 504.8319710233.

The spelling of 128659113 in words is "one hundred twenty-eight million, six hundred fifty-nine thousand, one hundred thirteen".