12866459 has 6 divisors (see below), whose sum is σ = 13326300. Its totient is φ = 12421976.

The previous prime is 12866423. The next prime is 12866461. The reversal of 12866459 is 95466821.

It is a happy number.

12866459 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 de Polignac number, because none of the positive numbers 2^k-12866459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12860459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6809 + ... + 8490.

It is an arithmetic number, because the mean of its divisors is an integer number (2221050).

Almost surely, 2^12866459 is an apocalyptic number.

12866459 is a deficient number, since it is larger than the sum of its proper divisors (459841).

12866459 is an equidigital number, since it uses as much as digits as its factorization.

12866459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15357 (or 15328 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 12866459 is about 3586.9846668198. The cubic root of 12866459 is about 234.3255689295.

The spelling of 12866459 in words is "twelve million, eight hundred sixty-six thousand, four hundred fifty-nine".