12433345 has 4 divisors (see below), whose sum is σ = 14920020. Its totient is φ = 9946672.

The previous prime is 12433339. The next prime is 12433349. The reversal of 12433345 is 54333421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54333421 = 31 ⋅1752691.

It can be written as a sum of positive squares in 2 ways, for example, as 8111104 + 4322241 = 2848^2 + 2079^2 .

It is a cyclic number.

It is not a de Polignac number, because 12433345 - 2⁵ = 12433313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12433349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1243330 + ... + 1243339.

It is an arithmetic number, because the mean of its divisors is an integer number (3730005).

Almost surely, 2^12433345 is an apocalyptic number.

It is an amenable number.

12433345 is a deficient number, since it is larger than the sum of its proper divisors (2486675).

12433345 is an equidigital number, since it uses as much as digits as its factorization.

12433345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486674.

The product of its digits is 4320, while the sum is 25.

The square root of 12433345 is about 3526.0948654283. The cubic root of 12433345 is about 231.6661928002. Note that the first 3 decimals are identical.

Adding to 12433345 its reverse (54333421), we get a palindrome (66766766).

The spelling of 12433345 in words is "twelve million, four hundred thirty-three thousand, three hundred forty-five".