12242437 has 6 divisors (see below), whose sum is σ = 12680018. Its totient is φ = 11819472.

The previous prime is 12242429. The next prime is 12242443. The reversal of 12242437 is 73424221.

It is a happy number.

12242437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 641601 + 11600836 = 801^2 + 3406^2 .

It is not a de Polignac number, because 12242437 - 2³ = 12242429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12242497) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6438 + ... + 8119.

Almost surely, 2^12242437 is an apocalyptic number.

It is an amenable number.

12242437 is a deficient number, since it is larger than the sum of its proper divisors (437581).

12242437 is an equidigital number, since it uses as much as digits as its factorization.

12242437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14615 (or 14586 counting only the distinct ones).

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

The square root of 12242437 is about 3498.9194046162. The cubic root of 12242437 is about 230.4743643880.

Adding to 12242437 its reverse (73424221), we get a palindrome (85666658).

The spelling of 12242437 in words is "twelve million, two hundred forty-two thousand, four hundred thirty-seven".