127317247 has 2 divisors, whose sum is σ = 127317248. Its totient is φ = 127317246.

The previous prime is 127317241. The next prime is 127317283. The reversal of 127317247 is 742713721.

It is a weak prime.

It is an emirp because it is prime and its reverse (742713721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127317247 - 2²³ = 118928639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127317241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63658623 + 63658624.

It is an arithmetic number, because the mean of its divisors is an integer number (63658624).

Almost surely, 2^127317247 is an apocalyptic number.

127317247 is a deficient number, since it is larger than the sum of its proper divisors (1).

127317247 is an equidigital number, since it uses as much as digits as its factorization.

127317247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16464, while the sum is 34.

The square root of 127317247 is about 11283.4944498591. The cubic root of 127317247 is about 503.0707648649.

The spelling of 127317247 in words is "one hundred twenty-seven million, three hundred seventeen thousand, two hundred forty-seven".