12517277 has 2 divisors, whose sum is σ = 12517278. Its totient is φ = 12517276.

The previous prime is 12517249. The next prime is 12517289. The reversal of 12517277 is 77271521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11978521 + 538756 = 3461^2 + 734^2 .

It is an emirp because it is prime and its reverse (77271521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12517277 - 2¹⁰ = 12516253 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12517217) 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, 6258638 + 6258639.

It is an arithmetic number, because the mean of its divisors is an integer number (6258639).

Almost surely, 2^12517277 is an apocalyptic number.

It is an amenable number.

12517277 is a deficient number, since it is larger than the sum of its proper divisors (1).

12517277 is an equidigital number, since it uses as much as digits as its factorization.

12517277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6860, while the sum is 32.

The square root of 12517277 is about 3537.9763990168. The cubic root of 12517277 is about 232.1863160969.

Adding to 12517277 its reverse (77271521), we get a palindrome (89788798).

The spelling of 12517277 in words is "twelve million, five hundred seventeen thousand, two hundred seventy-seven".