12856273 has 2 divisors, whose sum is σ = 12856274. Its totient is φ = 12856272.

The previous prime is 12856271. The next prime is 12856321. The reversal of 12856273 is 37265821.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12229009 + 627264 = 3497^2 + 792^2 .

It is a cyclic number.

It is not a de Polignac number, because 12856273 - 2¹ = 12856271 is a prime.

Together with 12856271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12856271) 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, 6428136 + 6428137.

It is an arithmetic number, because the mean of its divisors is an integer number (6428137).

Almost surely, 2^12856273 is an apocalyptic number.

It is an amenable number.

12856273 is a deficient number, since it is larger than the sum of its proper divisors (1).

12856273 is an equidigital number, since it uses as much as digits as its factorization.

12856273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 34.

The square root of 12856273 is about 3585.5645301682. The cubic root of 12856273 is about 234.2637163668.

The spelling of 12856273 in words is "twelve million, eight hundred fifty-six thousand, two hundred seventy-three".