13108247 has 2 divisors, whose sum is σ = 13108248. Its totient is φ = 13108246.

The previous prime is 13108243. The next prime is 13108279. The reversal of 13108247 is 74280131.

It is a weak prime.

It is an emirp because it is prime and its reverse (74280131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13108247 - 2² = 13108243 is a prime.

It is a super-2 number, since 2×13108247² = 343652278826018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13108243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6554123 + 6554124.

It is an arithmetic number, because the mean of its divisors is an integer number (6554124).

Almost surely, 2^13108247 is an apocalyptic number.

13108247 is a deficient number, since it is larger than the sum of its proper divisors (1).

13108247 is an equidigital number, since it uses as much as digits as its factorization.

13108247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 13108247 is about 3620.5313146001. The cubic root of 13108247 is about 235.7842937097.

Adding to 13108247 its reverse (74280131), we get a palindrome (87388378).

The spelling of 13108247 in words is "thirteen million, one hundred eight thousand, two hundred forty-seven".