12263861 has 2 divisors, whose sum is σ = 12263862. Its totient is φ = 12263860.

The previous prime is 12263843. The next prime is 12263869. The reversal of 12263861 is 16836221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9394225 + 2869636 = 3065^2 + 1694^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12263861 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 (12263869) 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, 6131930 + 6131931.

It is an arithmetic number, because the mean of its divisors is an integer number (6131931).

Almost surely, 2^12263861 is an apocalyptic number.

It is an amenable number.

12263861 is a deficient number, since it is larger than the sum of its proper divisors (1).

12263861 is an equidigital number, since it uses as much as digits as its factorization.

12263861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 29.

The square root of 12263861 is about 3501.9795830359. The cubic root of 12263861 is about 230.6087277586.

The spelling of 12263861 in words is "twelve million, two hundred sixty-three thousand, eight hundred sixty-one".