12247127 has 4 divisors (see below), whose sum is σ = 12267720. Its totient is φ = 12226536.

The previous prime is 12247117. The next prime is 12247129. The reversal of 12247127 is 72174221.

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

It is a cyclic number.

It is not a de Polignac number, because 12247127 - 2²² = 8052823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12247096 and 12247105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12247129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9377 + ... + 10602.

It is an arithmetic number, because the mean of its divisors is an integer number (3066930).

Almost surely, 2^12247127 is an apocalyptic number.

12247127 is a deficient number, since it is larger than the sum of its proper divisors (20593).

12247127 is an equidigital number, since it uses as much as digits as its factorization.

12247127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20592.

The product of its digits is 1568, while the sum is 26.

The square root of 12247127 is about 3499.5895473612. The cubic root of 12247127 is about 230.5037917198.

The spelling of 12247127 in words is "twelve million, two hundred forty-seven thousand, one hundred twenty-seven".