128000 divided by its product of nonzero digits (16) gives a cube (8000 = 203).
Adding to 128000 its reverse (821), we get a palindrome (128821).
It is a congruent number.
It is an unprimeable number.
2128000 is an apocalyptic number.
128000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 128000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159666).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128000 is an frugal number, since it uses more digits than its factorization.
128000 is an evil number, because the sum of its binary digits is even.
The square root of 128000 is about 357.7708764000. The cubic root of 128000 is about 50.3968419958.
The spelling of 128000 in words is "one hundred twenty-eight thousand".