12127247 has 8 divisors (see below), whose sum is σ = 13537920. Its totient is φ = 10767960.

The previous prime is 12127243. The next prime is 12127261. The reversal of 12127247 is 74272121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12127247 - 2² = 12127243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12127243) 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 in 7 ways as a sum of consecutive naturals, for example, 12347 + ... + 13292.

It is an arithmetic number, because the mean of its divisors is an integer number (1692240).

Almost surely, 2^12127247 is an apocalyptic number.

12127247 is a deficient number, since it is larger than the sum of its proper divisors (1410673).

12127247 is a wasteful number, since it uses less digits than its factorization.

12127247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25693.

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

The square root of 12127247 is about 3482.4197047455. The cubic root of 12127247 is about 229.7492352017.

Adding to 12127247 its reverse (74272121), we get a palindrome (86399368).

The spelling of 12127247 in words is "twelve million, one hundred twenty-seven thousand, two hundred forty-seven".