12259823 has 2 divisors, whose sum is σ = 12259824. Its totient is φ = 12259822.

The previous prime is 12259813. The next prime is 12259829. The reversal of 12259823 is 32895221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12259823 - 2¹⁸ = 11997679 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12259823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12259829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6129911 + 6129912.

It is an arithmetic number, because the mean of its divisors is an integer number (6129912).

Almost surely, 2^12259823 is an apocalyptic number.

12259823 is a deficient number, since it is larger than the sum of its proper divisors (1).

12259823 is an equidigital number, since it uses as much as digits as its factorization.

12259823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 12259823 is about 3501.4030045112. The cubic root of 12259823 is about 230.5834148966.

The spelling of 12259823 in words is "twelve million, two hundred fifty-nine thousand, eight hundred twenty-three".