12803143 has 4 divisors (see below), whose sum is σ = 12832488. Its totient is φ = 12773800.

The previous prime is 12803137. The next prime is 12803171. The reversal of 12803143 is 34130821.

12803143 is digitally balanced in base 2, 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 not a de Polignac number, because 12803143 - 2⁹ = 12802631 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 (12803113) 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, 14008 + ... + 14893.

It is an arithmetic number, because the mean of its divisors is an integer number (3208122).

Almost surely, 2^12803143 is an apocalyptic number.

12803143 is a deficient number, since it is larger than the sum of its proper divisors (29345).

12803143 is an equidigital number, since it uses as much as digits as its factorization.

12803143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29344.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12803143 is about 3578.1479846423. The cubic root of 12803143 is about 233.9405637146.

Adding to 12803143 its reverse (34130821), we get a palindrome (46933964).

The spelling of 12803143 in words is "twelve million, eight hundred three thousand, one hundred forty-three".