12125417 has 2 divisors, whose sum is σ = 12125418. Its totient is φ = 12125416.

The previous prime is 12125413. The next prime is 12125419. The reversal of 12125417 is 71452121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9265936 + 2859481 = 3044^2 + 1691^2 .

It is a cyclic number.

It is not a de Polignac number, because 12125417 - 2² = 12125413 is a prime.

Together with 12125419, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12125392 and 12125401.

It is not a weakly prime, because it can be changed into another prime (12125413) 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 as a sum of consecutive naturals, namely, 6062708 + 6062709.

It is an arithmetic number, because the mean of its divisors is an integer number (6062709).

Almost surely, 2^12125417 is an apocalyptic number.

It is an amenable number.

12125417 is a deficient number, since it is larger than the sum of its proper divisors (1).

12125417 is an equidigital number, since it uses as much as digits as its factorization.

12125417 is an odious number, because the sum of its binary digits is odd.

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

The square root of 12125417 is about 3482.1569464916. The cubic root of 12125417 is about 229.7376782438.

Adding to 12125417 its reverse (71452121), we get a palindrome (83577538).

The spelling of 12125417 in words is "twelve million, one hundred twenty-five thousand, four hundred seventeen".