12321466 has 4 divisors (see below), whose sum is σ = 18482202. Its totient is φ = 6160732.

The previous prime is 12321461. The next prime is 12321479. The reversal of 12321466 is 66412321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9828225 + 2493241 = 3135^2 + 1579^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12321466.

It is not an unprimeable number, because it can be changed into a prime (12321461) 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, 3080365 + ... + 3080368.

Almost surely, 2^12321466 is an apocalyptic number.

12321466 is a deficient number, since it is larger than the sum of its proper divisors (6160736).

12321466 is an equidigital number, since it uses as much as digits as its factorization.

12321466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6160735.

The product of its digits is 1728, while the sum is 25.

The square root of 12321466 is about 3510.1945815011. The cubic root of 12321466 is about 230.9692306112.

Adding to 12321466 its reverse (66412321), we get a palindrome (78733787).

The spelling of 12321466 in words is "twelve million, three hundred twenty-one thousand, four hundred sixty-six".