Search a number

12437 has 2 divisors, whose sum is σ = 12438. Its totient is φ = 12436.

The previous prime is 12433. The next prime is 12451. The reversal of 12437 is 73421.

Adding to 12437 its reverse (73421), we get a palindrome (85858).

It can be divided in two parts, 124 and 37, that added together give a palindrome (161).

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7396 + 5041 = 86^2 + 71^2 .

It is an emirp because it is prime and its reverse (73421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12437 - 22 = 12433 is a prime.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 12437.

It is not a weakly prime, because it can be changed into another prime (12433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6218 + 6219.

It is an arithmetic number, because the mean of its divisors is an integer number (6219).

212437 is an apocalyptic number.

It is an amenable number.

12437 is a deficient number, since it is larger than the sum of its proper divisors (1).

12437 is an equidigital number, since it uses as much as digits as its factorization.

12437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168, while the sum is 17.

The square root of 12437 is about 111.5212984142. The cubic root of 12437 is about 23.1688891357.

The spelling of 12437 in words is "twelve thousand, four hundred thirty-seven".