12500317 has 4 divisors (see below), whose sum is σ = 12640860. Its totient is φ = 12359776.

The previous prime is 12500263. The next prime is 12500329. The reversal of 12500317 is 71300521.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5812921 + 6687396 = 2411^2 + 2586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12500317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12500294 and 12500303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12500357) 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, 70138 + ... + 70315.

It is an arithmetic number, because the mean of its divisors is an integer number (3160215).

Almost surely, 2^12500317 is an apocalyptic number.

It is an amenable number.

12500317 is a deficient number, since it is larger than the sum of its proper divisors (140543).

12500317 is an equidigital number, since it uses as much as digits as its factorization.

12500317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140542.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 12500317 is about 3535.5787362184. The cubic root of 12500317 is about 232.0814035089.

Adding to 12500317 its reverse (71300521), we get a palindrome (83800838).

The spelling of 12500317 in words is "twelve million, five hundred thousand, three hundred seventeen".