It is a tau number, because it is divible by the number of its divisors (48).
It is a plaindrome in base 13.
It is a congruent number.
It is an unprimeable number.
2128736 is an apocalyptic number.
128736 is a gapful number since it is divisible by the number (16) 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 128736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128736 is a wasteful number, since it uses less digits than its factorization.
128736 is an evil number, because the sum of its binary digits is even.
The square root of 128736 is about 358.7979933054. The cubic root of 128736 is about 50.4932513937.
The spelling of 128736 in words is "one hundred twenty-eight thousand, seven hundred thirty-six".