128159022 has 32 divisors (see below), whose sum is σ = 280157184. Its totient is φ = 38908800.

The previous prime is 128159011. The next prime is 128159027. The reversal of 128159022 is 220951821.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128159027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17104 + ... + 23427.

It is an arithmetic number, because the mean of its divisors is an integer number (8754912).

Almost surely, 2^128159022 is an apocalyptic number.

128159022 is an abundant number, since it is smaller than the sum of its proper divisors (151998162).

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

128159022 is a wasteful number, since it uses less digits than its factorization.

128159022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40584.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 128159022 is about 11320.7341634719. The cubic root of 128159022 is about 504.1770368865.

The spelling of 128159022 in words is "one hundred twenty-eight million, one hundred fifty-nine thousand, twenty-two".