13081233 has 16 divisors (see below), whose sum is σ = 19684800. Its totient is φ = 7654080.

The previous prime is 13081231. The next prime is 13081247. The reversal of 13081233 is 33218031.

It is a happy number.

13081233 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13081233 - 2¹ = 13081231 is a prime.

It is a super-2 number, since 2×13081233² = 342237313600578, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13081231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5878 + ... + 7791.

It is an arithmetic number, because the mean of its divisors is an integer number (1230300).

Almost surely, 2^13081233 is an apocalyptic number.

It is an amenable number.

13081233 is a deficient number, since it is larger than the sum of its proper divisors (6603567).

13081233 is a wasteful number, since it uses less digits than its factorization.

13081233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13712.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 13081233 is about 3616.7987226275. The cubic root of 13081233 is about 235.6222110804.

Adding to 13081233 its reverse (33218031), we get a palindrome (46299264).

The spelling of 13081233 in words is "thirteen million, eighty-one thousand, two hundred thirty-three".