It is a nialpdrome in base 8 and base 16.
It is a zygodrome in base 16.
It is a congruent number.
In principle, a polygon with 139264 sides can be constructed with ruler and compass.
139264 is a Friedman number, since it can be written as (9*4-2)*(3+1)^6, using all its digits and the basic arithmetic operations.
2139264 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 139264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147447).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
139264 is an frugal number, since it uses more digits than its factorization.
139264 is an evil number, because the sum of its binary digits is even.
The square root of 139264 is about 373.1809212701. The cubic root of 139264 is about 51.8337888204.
The spelling of 139264 in words is "one hundred thirty-nine thousand, two hundred sixty-four".