12445 is an odd five-digits composite number following 12444 and preceding 12446. In scientific notation, it is written as 1.2445 × 104. The sum of its digits is 16. It has a total of 3 prime factors and 8 positive divisors. There are 9,360 positive integers (up to 12445) that are relatively prime to 12445.

There are 9,360 positive integers (less than 12445) that are coprime with 12445. And there are approximately 1,491 prime numbers less than or equal to 12445.

The number 12445 can be divided by 8 positive divisors (out of which none is even, and 8 are odd). The sum of these divisors (counting 12445) is 15840, the average is 1980.

The prime factorization of 12445 is 5 × 19 × 131. Since it has a total of 3 prime factors, 12445 is a composite number.