12243143 has 6 divisors (see below), whose sum is σ = 13457472. Its totient is φ = 11130020.

The previous prime is 12243139. The next prime is 12243151. The reversal of 12243143 is 34134221.

It is not a de Polignac number, because 12243143 - 2² = 12243139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12243103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50471 + ... + 50712.

It is an arithmetic number, because the mean of its divisors is an integer number (2242912).

Almost surely, 2^12243143 is an apocalyptic number.

12243143 is a deficient number, since it is larger than the sum of its proper divisors (1214329).

12243143 is a wasteful number, since it uses less digits than its factorization.

12243143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101205 (or 101194 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 12243143 is about 3499.0202914530. The cubic root of 12243143 is about 230.4787946544.

Adding to 12243143 its reverse (34134221), we get a palindrome (46377364).

The spelling of 12243143 in words is "twelve million, two hundred forty-three thousand, one hundred forty-three".