12107517 has 4 divisors (see below), whose sum is σ = 16143360. Its totient is φ = 8071676.

The previous prime is 12107507. The next prime is 12107531. The reversal of 12107517 is 71570121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12107517 - 2⁸ = 12107261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12107507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2017917 + ... + 2017922.

It is an arithmetic number, because the mean of its divisors is an integer number (4035840).

Almost surely, 2^12107517 is an apocalyptic number.

It is an amenable number.

12107517 is a deficient number, since it is larger than the sum of its proper divisors (4035843).

12107517 is an equidigital number, since it uses as much as digits as its factorization.

12107517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4035842.

The product of its (nonzero) digits is 490, while the sum is 24.

The square root of 12107517 is about 3479.5857512066. The cubic root of 12107517 is about 229.6245734139.

Adding to 12107517 its reverse (71570121), we get a palindrome (83677638).

The spelling of 12107517 in words is "twelve million, one hundred seven thousand, five hundred seventeen".