12289943 has 2 divisors, whose sum is σ = 12289944. Its totient is φ = 12289942.

The previous prime is 12289931. The next prime is 12289999. The reversal of 12289943 is 34998221.

12289943 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12289943 - 2⁸ = 12289687 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12289897 and 12289906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12280943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6144971 + 6144972.

It is an arithmetic number, because the mean of its divisors is an integer number (6144972).

Almost surely, 2^12289943 is an apocalyptic number.

12289943 is a deficient number, since it is larger than the sum of its proper divisors (1).

12289943 is an equidigital number, since it uses as much as digits as its factorization.

12289943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 38.

The square root of 12289943 is about 3505.7014989870. The cubic root of 12289943 is about 230.7720933292.

The spelling of 12289943 in words is "twelve million, two hundred eighty-nine thousand, nine hundred forty-three".