12422437 has 2 divisors, whose sum is σ = 12422438. Its totient is φ = 12422436.

The previous prime is 12422407. The next prime is 12422441. The reversal of 12422437 is 73422421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6974881 + 5447556 = 2641^2 + 2334^2 .

It is an emirp because it is prime and its reverse (73422421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12422437 - 2⁷ = 12422309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12422407) 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, 6211218 + 6211219.

It is an arithmetic number, because the mean of its divisors is an integer number (6211219).

Almost surely, 2^12422437 is an apocalyptic number.

It is an amenable number.

12422437 is a deficient number, since it is larger than the sum of its proper divisors (1).

12422437 is an equidigital number, since it uses as much as digits as its factorization.

12422437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 25.

The square root of 12422437 is about 3524.5477724100. The cubic root of 12422437 is about 231.5984246549.

Adding to 12422437 its reverse (73422421), we get a palindrome (85844858).

The spelling of 12422437 in words is "twelve million, four hundred twenty-two thousand, four hundred thirty-seven".