12144243 has 8 divisors (see below), whose sum is σ = 16750800. Its totient is φ = 7816928.

The previous prime is 12144233. The next prime is 12144247. The reversal of 12144243 is 34244121.

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

It is a cyclic number.

It is not a de Polignac number, because 12144243 - 2⁴ = 12144227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12144247) 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, 69708 + ... + 69881.

It is an arithmetic number, because the mean of its divisors is an integer number (2093850).

Almost surely, 2^12144243 is an apocalyptic number.

12144243 is a deficient number, since it is larger than the sum of its proper divisors (4606557).

12144243 is a wasteful number, since it uses less digits than its factorization.

12144243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139621.

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

The square root of 12144243 is about 3484.8591076254. The cubic root of 12144243 is about 229.8565141595.

Adding to 12144243 its reverse (34244121), we get a palindrome (46388364).

The spelling of 12144243 in words is "twelve million, one hundred forty-four thousand, two hundred forty-three".