12441557 has 2 divisors, whose sum is σ = 12441558. Its totient is φ = 12441556.

The previous prime is 12441553. The next prime is 12441581. The reversal of 12441557 is 75514421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9205156 + 3236401 = 3034^2 + 1799^2 .

It is a cyclic number.

It is not a de Polignac number, because 12441557 - 2² = 12441553 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12441553) 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, 6220778 + 6220779.

It is an arithmetic number, because the mean of its divisors is an integer number (6220779).

Almost surely, 2^12441557 is an apocalyptic number.

It is an amenable number.

12441557 is a deficient number, since it is larger than the sum of its proper divisors (1).

12441557 is an equidigital number, since it uses as much as digits as its factorization.

12441557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5600, while the sum is 29.

The square root of 12441557 is about 3527.2591342287. The cubic root of 12441557 is about 231.7171853552.

Adding to 12441557 its reverse (75514421), we get a palindrome (87955978).

The spelling of 12441557 in words is "twelve million, four hundred forty-one thousand, five hundred fifty-seven".