12230861 has 2 divisors, whose sum is σ = 12230862. Its totient is φ = 12230860.

The previous prime is 12230809. The next prime is 12230879. The reversal of 12230861 is 16803221.

12230861 is digitally balanced in base 2 and base 3, because in such bases 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., 12075625 + 155236 = 3475^2 + 394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12230861 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 (12230161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6115430 + 6115431.

It is an arithmetic number, because the mean of its divisors is an integer number (6115431).

Almost surely, 2^12230861 is an apocalyptic number.

It is an amenable number.

12230861 is a deficient number, since it is larger than the sum of its proper divisors (1).

12230861 is an equidigital number, since it uses as much as digits as its factorization.

12230861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 12230861 is about 3497.2647883739. The cubic root of 12230861 is about 230.4016987742.

The spelling of 12230861 in words is "twelve million, two hundred thirty thousand, eight hundred sixty-one".