12233143 has 4 divisors (see below), whose sum is σ = 13174168. Its totient is φ = 11292120.

The previous prime is 12233107. The next prime is 12233159. The reversal of 12233143 is 34133221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34133221 = 61 ⋅559561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12233143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12233143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12233443) 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, 470493 + ... + 470518.

It is an arithmetic number, because the mean of its divisors is an integer number (3293542).

Almost surely, 2^12233143 is an apocalyptic number.

12233143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12233143 is a deficient number, since it is larger than the sum of its proper divisors (941025).

12233143 is an equidigital number, since it uses as much as digits as its factorization.

12233143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941024.

The product of its digits is 432, while the sum is 19.

The square root of 12233143 is about 3497.5910281221. The cubic root of 12233143 is about 230.4160271190.

Adding to 12233143 its reverse (34133221), we get a palindrome (46366364).

The spelling of 12233143 in words is "twelve million, two hundred thirty-three thousand, one hundred forty-three".