12985277 has 2 divisors, whose sum is σ = 12985278. Its totient is φ = 12985276.

The previous prime is 12985223. The next prime is 12985283. The reversal of 12985277 is 77258921.

12985277 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7722841 + 5262436 = 2779^2 + 2294^2 .

It is a cyclic number.

It is not a de Polignac number, because 12985277 - 2⁶ = 12985213 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 (12985177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6492638 + 6492639.

It is an arithmetic number, because the mean of its divisors is an integer number (6492639).

Almost surely, 2^12985277 is an apocalyptic number.

It is an amenable number.

12985277 is a deficient number, since it is larger than the sum of its proper divisors (1).

12985277 is an equidigital number, since it uses as much as digits as its factorization.

12985277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 41.

The square root of 12985277 is about 3603.5089843096. The cubic root of 12985277 is about 235.0446693417.

The spelling of 12985277 in words is "twelve million, nine hundred eighty-five thousand, two hundred seventy-seven".