It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-136439 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 136439.
2136439 is an apocalyptic number.
136439 is a gapful number since it is divisible by the number (19) formed by its first and last digit.
136439 is a wasteful number, since it uses less digits than its factorization.
136439 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 229.
The square root of 136439 is about 369.3765016890. The cubic root of 136439 is about 51.4809053540.
The spelling of 136439 in words is "one hundred thirty-six thousand, four hundred thirty-nine".