12143317 has 2 divisors, whose sum is σ = 12143318. Its totient is φ = 12143316.

The previous prime is 12143309. The next prime is 12143353. The reversal of 12143317 is 71334121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8491396 + 3651921 = 2914^2 + 1911^2 .

It is an emirp because it is prime and its reverse (71334121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12143317 - 2³ = 12143309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12143387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6071658 + 6071659.

It is an arithmetic number, because the mean of its divisors is an integer number (6071659).

Almost surely, 2^12143317 is an apocalyptic number.

It is an amenable number.

12143317 is a deficient number, since it is larger than the sum of its proper divisors (1).

12143317 is an equidigital number, since it uses as much as digits as its factorization.

12143317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 22.

The square root of 12143317 is about 3484.7262446281. The cubic root of 12143317 is about 229.8506718153.

Adding to 12143317 its reverse (71334121), we get a palindrome (83477438).

The spelling of 12143317 in words is "twelve million, one hundred forty-three thousand, three hundred seventeen".