12824143 has 4 divisors (see below), whose sum is σ = 12873168. Its totient is φ = 12775120.

The previous prime is 12824131. The next prime is 12824153. The reversal of 12824143 is 34142821.

12824143 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12824143 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 (12824153) 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, 24118 + ... + 24643.

It is an arithmetic number, because the mean of its divisors is an integer number (3218292).

Almost surely, 2^12824143 is an apocalyptic number.

12824143 is a deficient number, since it is larger than the sum of its proper divisors (49025).

12824143 is an equidigital number, since it uses as much as digits as its factorization.

12824143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49024.

The product of its digits is 1536, while the sum is 25.

The square root of 12824143 is about 3581.0812612953. The cubic root of 12824143 is about 234.0683986866.

Adding to 12824143 its reverse (34142821), we get a palindrome (46966964).

The spelling of 12824143 in words is "twelve million, eight hundred twenty-four thousand, one hundred forty-three".