12144637 has 2 divisors, whose sum is σ = 12144638. Its totient is φ = 12144636.

The previous prime is 12144631. The next prime is 12144677. The reversal of 12144637 is 73644121.

12144637 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9603801 + 2540836 = 3099^2 + 1594^2 .

It is a cyclic number.

It is not a de Polignac number, because 12144637 - 2¹¹ = 12142589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12144631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6072318 + 6072319.

It is an arithmetic number, because the mean of its divisors is an integer number (6072319).

Almost surely, 2^12144637 is an apocalyptic number.

It is an amenable number.

12144637 is a deficient number, since it is larger than the sum of its proper divisors (1).

12144637 is an equidigital number, since it uses as much as digits as its factorization.

12144637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 28.

The square root of 12144637 is about 3484.9156374294. The cubic root of 12144637 is about 229.8589999048.

Adding to 12144637 its reverse (73644121), we get a palindrome (85788758).

The spelling of 12144637 in words is "twelve million, one hundred forty-four thousand, six hundred thirty-seven".