12271443 has 16 divisors (see below), whose sum is σ = 17627136. Its totient is φ = 7571520.

The previous prime is 12271439. The next prime is 12271447. The reversal of 12271443 is 34417221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12271439) and next prime (12271447).

It is not a de Polignac number, because 12271443 - 2² = 12271439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12271447) 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, 730 + ... + 5007.

It is an arithmetic number, because the mean of its divisors is an integer number (1101696).

Almost surely, 2^12271443 is an apocalyptic number.

12271443 is a deficient number, since it is larger than the sum of its proper divisors (5355693).

12271443 is a wasteful number, since it uses less digits than its factorization.

12271443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5794.

The product of its digits is 1344, while the sum is 24.

The square root of 12271443 is about 3503.0619463549. The cubic root of 12271443 is about 230.6562417558.

Adding to 12271443 its reverse (34417221), we get a palindrome (46688664).

The spelling of 12271443 in words is "twelve million, two hundred seventy-one thousand, four hundred forty-three".