12356143 has 2 divisors, whose sum is σ = 12356144. Its totient is φ = 12356142.

The previous prime is 12356111. The next prime is 12356147. The reversal of 12356143 is 34165321.

It is a strong prime.

It is an emirp because it is prime and its reverse (34165321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12356143 - 2⁵ = 12356111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12356147) 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, 6178071 + 6178072.

It is an arithmetic number, because the mean of its divisors is an integer number (6178072).

Almost surely, 2^12356143 is an apocalyptic number.

12356143 is a deficient number, since it is larger than the sum of its proper divisors (1).

12356143 is an equidigital number, since it uses as much as digits as its factorization.

12356143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 25.

The square root of 12356143 is about 3515.1305807893. The cubic root of 12356143 is about 231.1857042581.

The spelling of 12356143 in words is "twelve million, three hundred fifty-six thousand, one hundred forty-three".