12845449 has 2 divisors, whose sum is σ = 12845450. Its totient is φ = 12845448.

The previous prime is 12845411. The next prime is 12845453. The reversal of 12845449 is 94454821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7290000 + 5555449 = 2700^2 + 2357^2 .

It is a cyclic number.

It is not a de Polignac number, because 12845449 - 2¹⁹ = 12321161 is a prime.

It is not a weakly prime, because it can be changed into another prime (12845849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6422724 + 6422725.

It is an arithmetic number, because the mean of its divisors is an integer number (6422725).

Almost surely, 2^12845449 is an apocalyptic number.

It is an amenable number.

12845449 is a deficient number, since it is larger than the sum of its proper divisors (1).

12845449 is an equidigital number, since it uses as much as digits as its factorization.

12845449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 37.

The square root of 12845449 is about 3584.0548265896. The cubic root of 12845449 is about 234.1979538551.

The spelling of 12845449 in words is "twelve million, eight hundred forty-five thousand, four hundred forty-nine".