12512417 has 2 divisors, whose sum is σ = 12512418. Its totient is φ = 12512416.

The previous prime is 12512413. The next prime is 12512443. The reversal of 12512417 is 71421521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11621281 + 891136 = 3409^2 + 944^2 .

It is a cyclic number.

It is not a de Polignac number, because 12512417 - 2² = 12512413 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12512392 and 12512401.

It is not a weakly prime, because it can be changed into another prime (12512413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6256208 + 6256209.

It is an arithmetic number, because the mean of its divisors is an integer number (6256209).

Almost surely, 2^12512417 is an apocalyptic number.

It is an amenable number.

12512417 is a deficient number, since it is larger than the sum of its proper divisors (1).

12512417 is an equidigital number, since it uses as much as digits as its factorization.

12512417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 560, while the sum is 23.

The square root of 12512417 is about 3537.2894990374. The cubic root of 12512417 is about 232.1562623941.

Adding to 12512417 its reverse (71421521), we get a palindrome (83933938).

The spelling of 12512417 in words is "twelve million, five hundred twelve thousand, four hundred seventeen".