13117147 has 2 divisors, whose sum is σ = 13117148. Its totient is φ = 13117146.

The previous prime is 13117141. The next prime is 13117177. The reversal of 13117147 is 74171131.

13117147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (74171131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13117147 - 2¹¹ = 13115099 is a prime.

It is not a weakly prime, because it can be changed into another prime (13117141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6558573 + 6558574.

It is an arithmetic number, because the mean of its divisors is an integer number (6558574).

Almost surely, 2^13117147 is an apocalyptic number.

13117147 is a deficient number, since it is larger than the sum of its proper divisors (1).

13117147 is an equidigital number, since it uses as much as digits as its factorization.

13117147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 588, while the sum is 25.

The square root of 13117147 is about 3621.7602074130. The cubic root of 13117147 is about 235.8376444861.

Adding to 13117147 its reverse (74171131), we get a palindrome (87288278).

The spelling of 13117147 in words is "thirteen million, one hundred seventeen thousand, one hundred forty-seven".