It is a happy number.
148591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a Duffinian number.
It is a plaindrome in base 16.
It is a congruent number.
2148591 is an apocalyptic number.
148591 is a wasteful number, since it uses less digits than its factorization.
148591 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1208.
The square root of 148591 is about 385.4750316168. The cubic root of 148591 is about 52.9660397133.
The spelling of 148591 in words is "one hundred forty-eight thousand, five hundred ninety-one".