12249637 has 2 divisors, whose sum is σ = 12249638. Its totient is φ = 12249636.

The previous prime is 12249599. The next prime is 12249641. The reversal of 12249637 is 73694221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11329956 + 919681 = 3366^2 + 959^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12249637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12249647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6124818 + 6124819.

It is an arithmetic number, because the mean of its divisors is an integer number (6124819).

Almost surely, 2^12249637 is an apocalyptic number.

It is an amenable number.

12249637 is a deficient number, since it is larger than the sum of its proper divisors (1).

12249637 is an equidigital number, since it uses as much as digits as its factorization.

12249637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 34.

The square root of 12249637 is about 3499.9481424730. The cubic root of 12249637 is about 230.5195375894.

The spelling of 12249637 in words is "twelve million, two hundred forty-nine thousand, six hundred thirty-seven".