It is an Ulam number.
It is a plaindrome in base 13.
It is a self number, because there is not a number n which added to its sum of digits gives 128580.
It is an unprimeable number.
2128580 is an apocalyptic number.
128580 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 pseudoperfect number, because it is the sum of a subset of its proper divisors.
128580 is a wasteful number, since it uses less digits than its factorization.
128580 is an odious number, because the sum of its binary digits is odd.
The square root of 128580 is about 358.5805348872. The cubic root of 128580 is about 50.4728475412.
The spelling of 128580 in words is "one hundred twenty-eight thousand, five hundred eighty".