12143243 has 8 divisors (see below), whose sum is σ = 14201088. Its totient is φ = 10166184.

The previous prime is 12143237. The next prime is 12143251. The reversal of 12143243 is 34234121.

12143243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12143243 - 2¹⁰ = 12142219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12143233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19871 + ... + 20472.

It is an arithmetic number, because the mean of its divisors is an integer number (1775136).

Almost surely, 2^12143243 is an apocalyptic number.

12143243 is a deficient number, since it is larger than the sum of its proper divisors (2057845).

12143243 is an equidigital number, since it uses as much as digits as its factorization.

12143243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40393.

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

The square root of 12143243 is about 3484.7156268482. The cubic root of 12143243 is about 229.8502049197.

Adding to 12143243 its reverse (34234121), we get a palindrome (46377364).

The spelling of 12143243 in words is "twelve million, one hundred forty-three thousand, two hundred forty-three".