12526861 has 2 divisors, whose sum is σ = 12526862. Its totient is φ = 12526860.

The previous prime is 12526817. The next prime is 12526879. The reversal of 12526861 is 16862521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7209225 + 5317636 = 2685^2 + 2306^2 .

It is a cyclic number.

It is not a de Polignac number, because 12526861 - 2⁷ = 12526733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12526561) 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, 6263430 + 6263431.

It is an arithmetic number, because the mean of its divisors is an integer number (6263431).

Almost surely, 2^12526861 is an apocalyptic number.

It is an amenable number.

12526861 is a deficient number, since it is larger than the sum of its proper divisors (1).

12526861 is an equidigital number, since it uses as much as digits as its factorization.

12526861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 31.

The square root of 12526861 is about 3539.3305864245. The cubic root of 12526861 is about 232.2455597050.

The spelling of 12526861 in words is "twelve million, five hundred twenty-six thousand, eight hundred sixty-one".