It is a happy number.
It is a zygodrome in base 4.
It is a congruent number.
Almost surely, 223003136 is an apocalyptic number.
23003136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 23003136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36699880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23003136 is an frugal number, since it uses more digits than its factorization.
23003136 is an odious number, because the sum of its binary digits is odd.
The square root of 23003136 is about 4796.1584627700. The cubic root of 23003136 is about 284.3996225671.
Adding to 23003136 its reverse (63130032), we get a palindrome (86133168).
The spelling of 23003136 in words is "twenty-three million, three thousand, one hundred thirty-six".