12537443 has 2 divisors, whose sum is σ = 12537444. Its totient is φ = 12537442.

The previous prime is 12537419. The next prime is 12537451. The reversal of 12537443 is 34473521.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (34473521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12537443 - 2¹⁸ = 12275299 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12537403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6268721 + 6268722.

It is an arithmetic number, because the mean of its divisors is an integer number (6268722).

Almost surely, 2^12537443 is an apocalyptic number.

12537443 is a deficient number, since it is larger than the sum of its proper divisors (1).

12537443 is an equidigital number, since it uses as much as digits as its factorization.

12537443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 29.

The square root of 12537443 is about 3540.8251863090. The cubic root of 12537443 is about 232.3109373714.

The spelling of 12537443 in words is "twelve million, five hundred thirty-seven thousand, four hundred forty-three".