Adding to 133040 its reverse (40331), we get a palindrome (173371).
It is a tau number, because it is divible by the number of its divisors (20).
It is a plaindrome in base 14.
It is an unprimeable number.
2133040 is an apocalyptic number.
133040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
133040 is a wasteful number, since it uses less digits than its factorization.
133040 is an odious number, because the sum of its binary digits is odd.
The square root of 133040 is about 364.7464873032. The cubic root of 133040 is about 51.0498039690.
The spelling of 133040 in words is "one hundred thirty-three thousand, forty".