13256449 has 2 divisors, whose sum is σ = 13256450. Its totient is φ = 13256448.

The previous prime is 13256443. The next prime is 13256527. The reversal of 13256449 is 94465231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13191424 + 65025 = 3632^2 + 255^2 .

It is a cyclic number.

It is not a de Polignac number, because 13256449 - 2⁵ = 13256417 is a prime.

It is not a weakly prime, because it can be changed into another prime (13256443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6628224 + 6628225.

It is an arithmetic number, because the mean of its divisors is an integer number (6628225).

Almost surely, 2^13256449 is an apocalyptic number.

It is an amenable number.

13256449 is a deficient number, since it is larger than the sum of its proper divisors (1).

13256449 is an equidigital number, since it uses as much as digits as its factorization.

13256449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 13256449 is about 3640.9406751553. The cubic root of 13256449 is about 236.6695591350.

The spelling of 13256449 in words is "thirteen million, two hundred fifty-six thousand, four hundred forty-nine".