12605171 has 2 divisors, whose sum is σ = 12605172. Its totient is φ = 12605170.

The previous prime is 12605167. The next prime is 12605183. The reversal of 12605171 is 17150621.

12605171 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12605171 - 2² = 12605167 is a prime.

It is not a weakly prime, because it can be changed into another prime (12605191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6302585 + 6302586.

It is an arithmetic number, because the mean of its divisors is an integer number (6302586).

Almost surely, 2^12605171 is an apocalyptic number.

12605171 is a deficient number, since it is larger than the sum of its proper divisors (1).

12605171 is an equidigital number, since it uses as much as digits as its factorization.

12605171 is an evil number, because the sum of its binary digits is even.

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

The square root of 12605171 is about 3550.3761772522. The cubic root of 12605171 is about 232.7285054506.

Adding to 12605171 its reverse (17150621), we get a palindrome (29755792).

The spelling of 12605171 in words is "twelve million, six hundred five thousand, one hundred seventy-one".