13226287 has 2 divisors, whose sum is σ = 13226288. Its totient is φ = 13226286.

The previous prime is 13226273. The next prime is 13226293. The reversal of 13226287 is 78262231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13226287 - 2⁷ = 13226159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13226237) 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, 6613143 + 6613144.

It is an arithmetic number, because the mean of its divisors is an integer number (6613144).

Almost surely, 2^13226287 is an apocalyptic number.

13226287 is a deficient number, since it is larger than the sum of its proper divisors (1).

13226287 is an equidigital number, since it uses as much as digits as its factorization.

13226287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 13226287 is about 3636.7962549475. The cubic root of 13226287 is about 236.4899271173.

The spelling of 13226287 in words is "thirteen million, two hundred twenty-six thousand, two hundred eighty-seven".