12831449 has 2 divisors, whose sum is σ = 12831450. Its totient is φ = 12831448.

The previous prime is 12831439. The next prime is 12831457. The reversal of 12831449 is 94413821.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11102224 + 1729225 = 3332^2 + 1315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12831449 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12831419) 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, 6415724 + 6415725.

It is an arithmetic number, because the mean of its divisors is an integer number (6415725).

Almost surely, 2^12831449 is an apocalyptic number.

It is an amenable number.

12831449 is a deficient number, since it is larger than the sum of its proper divisors (1).

12831449 is an equidigital number, since it uses as much as digits as its factorization.

12831449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 32.

The square root of 12831449 is about 3582.1011990171. The cubic root of 12831449 is about 234.1128403587.

The spelling of 12831449 in words is "twelve million, eight hundred thirty-one thousand, four hundred forty-nine".