12655277 has 2 divisors, whose sum is σ = 12655278. Its totient is φ = 12655276.

The previous prime is 12655249. The next prime is 12655303. The reversal of 12655277 is 77255621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11464996 + 1190281 = 3386^2 + 1091^2 .

It is an emirp because it is prime and its reverse (77255621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12655277 - 2¹⁴ = 12638893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12655777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6327638 + 6327639.

It is an arithmetic number, because the mean of its divisors is an integer number (6327639).

Almost surely, 2^12655277 is an apocalyptic number.

It is an amenable number.

12655277 is a deficient number, since it is larger than the sum of its proper divisors (1).

12655277 is an equidigital number, since it uses as much as digits as its factorization.

12655277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29400, while the sum is 35.

The square root of 12655277 is about 3557.4256141204. The cubic root of 12655277 is about 233.0364657693.

The spelling of 12655277 in words is "twelve million, six hundred fifty-five thousand, two hundred seventy-seven".