127223247169 has 2 divisors, whose sum is σ = 127223247170. Its totient is φ = 127223247168.

The previous prime is 127223247139. The next prime is 127223247223. The reversal of 127223247169 is 961742322721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91071168400 + 36152078769 = 301780^2 + 190137^2 .

It is an emirp because it is prime and its reverse (961742322721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127223247169 - 2¹³ = 127223238977 is a prime.

It is a super-2 number, since 2×127223247169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (127223247119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63611623584 + 63611623585.

It is an arithmetic number, because the mean of its divisors is an integer number (63611623585).

Almost surely, 2^127223247169 is an apocalyptic number.

It is an amenable number.

127223247169 is a deficient number, since it is larger than the sum of its proper divisors (1).

127223247169 is an equidigital number, since it uses as much as digits as its factorization.

127223247169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 46.

The spelling of 127223247169 in words is "one hundred twenty-seven billion, two hundred twenty-three million, two hundred forty-seven thousand, one hundred sixty-nine".