12127317 has 8 divisors (see below), whose sum is σ = 16202880. Its totient is φ = 8068320.

The previous prime is 12127309. The next prime is 12127319. The reversal of 12127317 is 71372121.

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

It is not a de Polignac number, because 12127317 - 2³ = 12127309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12127319) 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, 2317 + ... + 5442.

It is an arithmetic number, because the mean of its divisors is an integer number (2025360).

Almost surely, 2^12127317 is an apocalyptic number.

It is an amenable number.

12127317 is a deficient number, since it is larger than the sum of its proper divisors (4075563).

12127317 is an equidigital number, since it uses as much as digits as its factorization.

12127317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8283.

The product of its digits is 588, while the sum is 24.

The square root of 12127317 is about 3482.4297552140. The cubic root of 12127317 is about 229.7496772480.

Adding to 12127317 its reverse (71372121), we get a palindrome (83499438).

The spelling of 12127317 in words is "twelve million, one hundred twenty-seven thousand, three hundred seventeen".