12244143 has 4 divisors (see below), whose sum is σ = 16325528. Its totient is φ = 8162760.

The previous prime is 12244139. The next prime is 12244147. The reversal of 12244143 is 34144221.

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

It is an interprime number because it is at equal distance from previous prime (12244139) and next prime (12244147).

It is not a de Polignac number, because 12244143 - 2² = 12244139 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 (12244147) 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, 2040688 + ... + 2040693.

It is an arithmetic number, because the mean of its divisors is an integer number (4081382).

Almost surely, 2^12244143 is an apocalyptic number.

12244143 is a deficient number, since it is larger than the sum of its proper divisors (4081385).

12244143 is an equidigital number, since it uses as much as digits as its factorization.

12244143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4081384.

The product of its digits is 768, while the sum is 21.

The square root of 12244143 is about 3499.1631856774. The cubic root of 12244143 is about 230.4850695279.

Adding to 12244143 its reverse (34144221), we get a palindrome (46388364).

The spelling of 12244143 in words is "twelve million, two hundred forty-four thousand, one hundred forty-three".