128089168 has 10 divisors (see below), whose sum is σ = 248172794. Its totient is φ = 64044576.

The previous prime is 128089163. The next prime is 128089189. The reversal of 128089168 is 861980821.

It can be written as a sum of positive squares in only one way, i.e., 111344704 + 16744464 = 10552^2 + 4092^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128089163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4002771 + ... + 4002802.

Almost surely, 2^128089168 is an apocalyptic number.

It is an amenable number.

128089168 is a deficient number, since it is larger than the sum of its proper divisors (120083626).

128089168 is an equidigital number, since it uses as much as digits as its factorization.

128089168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8005581 (or 8005575 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 43.

The square root of 128089168 is about 11317.6485190167. The cubic root of 128089168 is about 504.0854184610.

The spelling of 128089168 in words is "one hundred twenty-eight million, eighty-nine thousand, one hundred sixty-eight".