12243541 has 2 divisors, whose sum is σ = 12243542. Its totient is φ = 12243540.

The previous prime is 12243457. The next prime is 12243551. The reversal of 12243541 is 14534221.

12243541 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7447441 + 4796100 = 2729^2 + 2190^2 .

It is a cyclic number.

It is not a de Polignac number, because 12243541 - 2⁹ = 12243029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12243551) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6121770 + 6121771.

It is an arithmetic number, because the mean of its divisors is an integer number (6121771).

Almost surely, 2^12243541 is an apocalyptic number.

It is an amenable number.

12243541 is a deficient number, since it is larger than the sum of its proper divisors (1).

12243541 is an equidigital number, since it uses as much as digits as its factorization.

12243541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 22.

The square root of 12243541 is about 3499.0771640534. The cubic root of 12243541 is about 230.4812920950.

Adding to 12243541 its reverse (14534221), we get a palindrome (26777762).

The spelling of 12243541 in words is "twelve million, two hundred forty-three thousand, five hundred forty-one".