135899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-135899 is a prime.
It is a Chen prime.
It is a plaindrome in base 10 and base 12.
2135899 is an apocalyptic number.
135899 is an equidigital number, since it uses as much as digits as its factorization.
135899 is an odious number, because the sum of its binary digits is odd.
The square root of 135899 is about 368.6448155067. The cubic root of 135899 is about 51.4128982957.
The spelling of 135899 in words is "one hundred thirty-five thousand, eight hundred ninety-nine".