13727249 has 2 divisors, whose sum is σ = 13727250. Its totient is φ = 13727248.

The previous prime is 13727227. The next prime is 13727261. The reversal of 13727249 is 94272731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13690000 + 37249 = 3700^2 + 193^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13727249 is a prime.

It is not a weakly prime, because it can be changed into another prime (13727209) 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, 6863624 + 6863625.

It is an arithmetic number, because the mean of its divisors is an integer number (6863625).

Almost surely, 2^13727249 is an apocalyptic number.

It is an amenable number.

13727249 is a deficient number, since it is larger than the sum of its proper divisors (1).

13727249 is an equidigital number, since it uses as much as digits as its factorization.

13727249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 35.

The square root of 13727249 is about 3705.0302292964. The cubic root of 13727249 is about 239.4387870694.

The spelling of 13727249 in words is "thirteen million, seven hundred twenty-seven thousand, two hundred forty-nine".