138233653 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is a Duffinian number.
It is a congruent number.
Almost surely, 2138233653 is an apocalyptic number.
It is an amenable number.
138233653 is a wasteful number, since it uses less digits than its factorization.
138233653 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23626.
The square root of 138233653 is about 11757.2808506049. The cubic root of 138233653 is about 517.0564121781.
The spelling of 138233653 in words is "one hundred thirty-eight million, two hundred thirty-three thousand, six hundred fifty-three".