7117147 has 2 divisors, whose sum is σ = 7117148. Its totient is φ = 7117146.

The previous prime is 7117141. The next prime is 7117171. The reversal of 7117147 is 7417117.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7117147 is a prime.

7117147 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (7117141) 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 as a sum of consecutive naturals, namely, 3558573 + 3558574.

It is an arithmetic number, because the mean of its divisors is an integer number (3558574).

Almost surely, 2^7117147 is an apocalyptic number.

7117147 is a deficient number, since it is larger than the sum of its proper divisors (1).

7117147 is an equidigital number, since it uses as much as digits as its factorization.

7117147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1372, while the sum is 28.

The square root of 7117147 is about 2667.7981557832. The cubic root of 7117147 is about 192.3543351846.

The spelling of 7117147 in words is "seven million, one hundred seventeen thousand, one hundred forty-seven".