12475709 has 2 divisors, whose sum is σ = 12475710. Its totient is φ = 12475708.

The previous prime is 12475681. The next prime is 12475711. The reversal of 12475709 is 90757421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11710084 + 765625 = 3422^2 + 875^2 .

It is an emirp because it is prime and its reverse (90757421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12475709 - 2²⁰ = 11427133 is a prime.

It is a Sophie Germain prime.

Together with 12475711, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12475769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6237854 + 6237855.

It is an arithmetic number, because the mean of its divisors is an integer number (6237855).

Almost surely, 2^12475709 is an apocalyptic number.

It is an amenable number.

12475709 is a deficient number, since it is larger than the sum of its proper divisors (1).

12475709 is an equidigital number, since it uses as much as digits as its factorization.

12475709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 12475709 is about 3532.0969692238. The cubic root of 12475709 is about 231.9290124173.

The spelling of 12475709 in words is "twelve million, four hundred seventy-five thousand, seven hundred nine".