12945443 has 4 divisors (see below), whose sum is σ = 14794800. Its totient is φ = 11096088.

The previous prime is 12945437. The next prime is 12945467. The reversal of 12945443 is 34454921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12945443 - 2⁸ = 12945187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12945043) 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, 924668 + ... + 924681.

It is an arithmetic number, because the mean of its divisors is an integer number (3698700).

Almost surely, 2^12945443 is an apocalyptic number.

12945443 is a deficient number, since it is larger than the sum of its proper divisors (1849357).

12945443 is an equidigital number, since it uses as much as digits as its factorization.

12945443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849356.

The product of its digits is 17280, while the sum is 32.

The square root of 12945443 is about 3597.9776263896. The cubic root of 12945443 is about 234.8040799537.

The spelling of 12945443 in words is "twelve million, nine hundred forty-five thousand, four hundred forty-three".