12648143 has 4 divisors (see below), whose sum is σ = 12666888. Its totient is φ = 12629400.

The previous prime is 12648127. The next prime is 12648151. The reversal of 12648143 is 34184621.

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 12648143 - 2⁴ = 12648127 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 (12648113) 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, 8321 + ... + 9722.

It is an arithmetic number, because the mean of its divisors is an integer number (3166722).

Almost surely, 2^12648143 is an apocalyptic number.

12648143 is a deficient number, since it is larger than the sum of its proper divisors (18745).

12648143 is an equidigital number, since it uses as much as digits as its factorization.

12648143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18744.

The product of its digits is 4608, while the sum is 29.

The square root of 12648143 is about 3556.4227813914. The cubic root of 12648143 is about 232.9926686341.

The spelling of 12648143 in words is "twelve million, six hundred forty-eight thousand, one hundred forty-three".