12280027 has 4 divisors (see below), whose sum is σ = 12289096. Its totient is φ = 12270960.

The previous prime is 12280013. The next prime is 12280031. The reversal of 12280027 is 72008221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12280027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12280007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2049 + ... + 5362.

It is an arithmetic number, because the mean of its divisors is an integer number (3072274).

Almost surely, 2^12280027 is an apocalyptic number.

12280027 is a deficient number, since it is larger than the sum of its proper divisors (9069).

12280027 is an equidigital number, since it uses as much as digits as its factorization.

12280027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9068.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 12280027 is about 3504.2869460134. The cubic root of 12280027 is about 230.7100113544.

Adding to 12280027 its reverse (72008221), we get a palindrome (84288248).

The spelling of 12280027 in words is "twelve million, two hundred eighty thousand, twenty-seven".