12732266 has 4 divisors (see below), whose sum is σ = 19098402. Its totient is φ = 6366132.

The previous prime is 12732241. The next prime is 12732277. The reversal of 12732266 is 66223721.

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., 7958041 + 4774225 = 2821^2 + 2185^2 .

It is a super-2 number, since 2×12732266² = 324221194989512, which contains 22 as substring.

It is an unprimeable number.

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, 3183065 + ... + 3183068.

Almost surely, 2^12732266 is an apocalyptic number.

12732266 is a deficient number, since it is larger than the sum of its proper divisors (6366136).

12732266 is an equidigital number, since it uses as much as digits as its factorization.

12732266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6366135.

The product of its digits is 6048, while the sum is 29.

The square root of 12732266 is about 3568.2300934777. The cubic root of 12732266 is about 233.5080736417.

Adding to 12732266 its reverse (66223721), we get a palindrome (78955987).

The spelling of 12732266 in words is "twelve million, seven hundred thirty-two thousand, two hundred sixty-six".