127217 has 2 divisors, whose sum is σ = 127218. Its totient is φ = 127216.

The previous prime is 127207. The next prime is 127219. The reversal of 127217 is 712721.

127217 is nontrivially palindromic in base 16.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87616 + 39601 = 296^2 + 199^2 .

It is a cyclic number.

It is not a de Polignac number, because 127217 - 2⁸ = 126961 is a prime.

Together with 127219, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 11.

It is not a weakly prime, because it can be changed into another prime (127219) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63608 + 63609.

It is an arithmetic number, because the mean of its divisors is an integer number (63609).

2¹²⁷²¹⁷ is an apocalyptic number.

It is an amenable number.

127217 is a deficient number, since it is larger than the sum of its proper divisors (1).

127217 is an equidigital number, since it uses as much as digits as its factorization.

127217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 196, while the sum is 20.

The square root of 127217 is about 356.6749220228. The cubic root of 127217 is about 50.2938694314.

Adding to 127217 its reverse (712721), we get a palindrome (839938).

The spelling of 127217 in words is "one hundred twenty-seven thousand, two hundred seventeen", and thus it is an iban number.