12356243 has 2 divisors, whose sum is σ = 12356244. Its totient is φ = 12356242.

The previous prime is 12356237. The next prime is 12356269. The reversal of 12356243 is 34265321.

12356243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (12356269) can be obtained adding 12356243 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12356243 - 2¹⁸ = 12094099 is a prime.

It is not a weakly prime, because it can be changed into another prime (12356273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6178121 + 6178122.

It is an arithmetic number, because the mean of its divisors is an integer number (6178122).

Almost surely, 2^12356243 is an apocalyptic number.

12356243 is a deficient number, since it is larger than the sum of its proper divisors (1).

12356243 is an equidigital number, since it uses as much as digits as its factorization.

12356243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 26.

The square root of 12356243 is about 3515.1448049831. The cubic root of 12356243 is about 231.1863279292.

The spelling of 12356243 in words is "twelve million, three hundred fifty-six thousand, two hundred forty-three".