12605117 has 4 divisors (see below), whose sum is σ = 14405856. Its totient is φ = 10804380.

The previous prime is 12605077. The next prime is 12605137. The reversal of 12605117 is 71150621.

12605117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12605117 - 2⁸ = 12604861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12605092 and 12605101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12605137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 900359 + ... + 900372.

It is an arithmetic number, because the mean of its divisors is an integer number (3601464).

Almost surely, 2^12605117 is an apocalyptic number.

It is an amenable number.

12605117 is a deficient number, since it is larger than the sum of its proper divisors (1800739).

12605117 is an equidigital number, since it uses as much as digits as its factorization.

12605117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800738.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 12605117 is about 3550.3685724161. The cubic root of 12605117 is about 232.7281731172.

Adding to 12605117 its reverse (71150621), we get a palindrome (83755738).

The spelling of 12605117 in words is "twelve million, six hundred five thousand, one hundred seventeen".