12143233 has 2 divisors, whose sum is σ = 12143234. Its totient is φ = 12143232.

The previous prime is 12143221. The next prime is 12143237. The reversal of 12143233 is 33234121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6723649 + 5419584 = 2593^2 + 2328^2 .

It is an emirp because it is prime and its reverse (33234121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12143233 - 2¹³ = 12135041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12143233.

It is not a weakly prime, because it can be changed into another prime (12143237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6071616 + 6071617.

It is an arithmetic number, because the mean of its divisors is an integer number (6071617).

Almost surely, 2^12143233 is an apocalyptic number.

It is an amenable number.

12143233 is a deficient number, since it is larger than the sum of its proper divisors (1).

12143233 is an equidigital number, since it uses as much as digits as its factorization.

12143233 is an evil number, because the sum of its binary digits is even.

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

The square root of 12143233 is about 3484.7141920106. The cubic root of 12143233 is about 229.8501418255.

Adding to 12143233 its reverse (33234121), we get a palindrome (45377354).

The spelling of 12143233 in words is "twelve million, one hundred forty-three thousand, two hundred thirty-three".