128056159 has 12 divisors (see below), whose sum is σ = 162506088. Its totient is φ = 99783600.

The previous prime is 128056139. The next prime is 128056171. The reversal of 128056159 is 951650821.

It is not a de Polignac number, because 128056159 - 2⁷ = 128056031 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 (128056139) 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 11 ways as a sum of consecutive naturals, for example, 118252 + ... + 119329.

It is an arithmetic number, because the mean of its divisors is an integer number (13542174).

Almost surely, 2^128056159 is an apocalyptic number.

128056159 is a deficient number, since it is larger than the sum of its proper divisors (34449929).

128056159 is a wasteful number, since it uses less digits than its factorization.

128056159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237606 (or 237599 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 37.

The square root of 128056159 is about 11316.1901274236. The cubic root of 128056159 is about 504.0421132505.

The spelling of 128056159 in words is "one hundred twenty-eight million, fifty-six thousand, one hundred fifty-nine".