128806127 has 8 divisors (see below), whose sum is σ = 136483776. Its totient is φ = 121139712.

The previous prime is 128806109. The next prime is 128806129. The reversal of 128806127 is 721608821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128806127 - 2²⁰ = 127757551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128806129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37223 + ... + 40535.

It is an arithmetic number, because the mean of its divisors is an integer number (17060472).

Almost surely, 2^128806127 is an apocalyptic number.

128806127 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

128806127 is a deficient number, since it is larger than the sum of its proper divisors (7677649).

128806127 is a wasteful number, since it uses less digits than its factorization.

128806127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5617.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 128806127 is about 11349.2786995474. The cubic root of 128806127 is about 505.0241820920.

The spelling of 128806127 in words is "one hundred twenty-eight million, eight hundred six thousand, one hundred twenty-seven".