13228247 has 2 divisors, whose sum is σ = 13228248. Its totient is φ = 13228246.

The previous prime is 13228211. The next prime is 13228283. The reversal of 13228247 is 74282231.

It is a balanced prime because it is at equal distance from previous prime (13228211) and next prime (13228283).

It is a cyclic number.

It is not a de Polignac number, because 13228247 - 2⁶ = 13228183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13228207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6614123 + 6614124.

It is an arithmetic number, because the mean of its divisors is an integer number (6614124).

Almost surely, 2^13228247 is an apocalyptic number.

13228247 is a deficient number, since it is larger than the sum of its proper divisors (1).

13228247 is an equidigital number, since it uses as much as digits as its factorization.

13228247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 29.

The square root of 13228247 is about 3637.0657129065. The cubic root of 13228247 is about 236.5016083337.

The spelling of 13228247 in words is "thirteen million, two hundred twenty-eight thousand, two hundred forty-seven".