13268247 has 4 divisors (see below), whose sum is σ = 17691000. Its totient is φ = 8845496.

The previous prime is 13268231. The next prime is 13268249. The reversal of 13268247 is 74286231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13268247 - 2⁴ = 13268231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13268249) 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 in 3 ways as a sum of consecutive naturals, for example, 2211372 + ... + 2211377.

It is an arithmetic number, because the mean of its divisors is an integer number (4422750).

Almost surely, 2^13268247 is an apocalyptic number.

13268247 is a deficient number, since it is larger than the sum of its proper divisors (4422753).

13268247 is an equidigital number, since it uses as much as digits as its factorization.

13268247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4422752.

The product of its digits is 16128, while the sum is 33.

The square root of 13268247 is about 3642.5605005271. The cubic root of 13268247 is about 236.7397488599.

The spelling of 13268247 in words is "thirteen million, two hundred sixty-eight thousand, two hundred forty-seven".