12443315 has 8 divisors (see below), whose sum is σ = 14981568. Its totient is φ = 9921600.

The previous prime is 12443311. The next prime is 12443317. The reversal of 12443315 is 51334421.

12443315 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12443315 - 2² = 12443311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12443311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2411 + ... + 5540.

It is an arithmetic number, because the mean of its divisors is an integer number (1872696).

Almost surely, 2^12443315 is an apocalyptic number.

12443315 is a deficient number, since it is larger than the sum of its proper divisors (2538253).

12443315 is an equidigital number, since it uses as much as digits as its factorization.

12443315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8269.

The product of its digits is 1440, while the sum is 23.

The square root of 12443315 is about 3527.5083274175. The cubic root of 12443315 is about 231.7280987702.

Adding to 12443315 its reverse (51334421), we get a palindrome (63777736).

The spelling of 12443315 in words is "twelve million, four hundred forty-three thousand, three hundred fifteen".