13206449 has 2 divisors, whose sum is σ = 13206450. Its totient is φ = 13206448.

The previous prime is 13206421. The next prime is 13206491. The reversal of 13206449 is 94460231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10080625 + 3125824 = 3175^2 + 1768^2 .

It is an emirp because it is prime and its reverse (94460231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13206449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13206419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6603224 + 6603225.

It is an arithmetic number, because the mean of its divisors is an integer number (6603225).

Almost surely, 2^13206449 is an apocalyptic number.

It is an amenable number.

13206449 is a deficient number, since it is larger than the sum of its proper divisors (1).

13206449 is an equidigital number, since it uses as much as digits as its factorization.

13206449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 13206449 is about 3634.0678309575. The cubic root of 13206449 is about 236.3716315164.

The spelling of 13206449 in words is "thirteen million, two hundred six thousand, four hundred forty-nine".