12143433 has 4 divisors (see below), whose sum is σ = 16191248. Its totient is φ = 8095620.

The previous prime is 12143429. The next prime is 12143441. The reversal of 12143433 is 33434121.

12143433 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12143433 - 2² = 12143429 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12143473) 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, 2023903 + ... + 2023908.

It is an arithmetic number, because the mean of its divisors is an integer number (4047812).

Almost surely, 2^12143433 is an apocalyptic number.

It is an amenable number.

12143433 is a deficient number, since it is larger than the sum of its proper divisors (4047815).

12143433 is an equidigital number, since it uses as much as digits as its factorization.

12143433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4047814.

The product of its digits is 864, while the sum is 21.

The square root of 12143433 is about 3484.7428886505. The cubic root of 12143433 is about 229.8514037019.

Adding to 12143433 its reverse (33434121), we get a palindrome (45577554).

The spelling of 12143433 in words is "twelve million, one hundred forty-three thousand, four hundred thirty-three".