128855159 has 2 divisors, whose sum is σ = 128855160. Its totient is φ = 128855158.

The previous prime is 128855141. The next prime is 128855161. The reversal of 128855159 is 951558821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128855159 - 2¹⁶ = 128789623 is a prime.

Together with 128855161, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128855459) by changing a digit.

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 as a sum of consecutive naturals, namely, 64427579 + 64427580.

It is an arithmetic number, because the mean of its divisors is an integer number (64427580).

Almost surely, 2^128855159 is an apocalyptic number.

128855159 is a deficient number, since it is larger than the sum of its proper divisors (1).

128855159 is an equidigital number, since it uses as much as digits as its factorization.

128855159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144000, while the sum is 44.

The square root of 128855159 is about 11351.4386312925. The cubic root of 128855159 is about 505.0882556598.

The spelling of 128855159 in words is "one hundred twenty-eight million, eight hundred fifty-five thousand, one hundred fifty-nine".