12717171 has 12 divisors (see below), whose sum is σ = 18437848. Its totient is φ = 8446464.

The previous prime is 12717169. The next prime is 12717179. The reversal of 12717171 is 17171721.

It is not a de Polignac number, because 12717171 - 2¹ = 12717169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12717179) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51 + ... + 5043.

Almost surely, 2^12717171 is an apocalyptic number.

12717171 is a deficient number, since it is larger than the sum of its proper divisors (5720677).

12717171 is a wasteful number, since it uses less digits than its factorization.

12717171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5282 (or 5279 counting only the distinct ones).

The product of its digits is 686, while the sum is 27.

The square root of 12717171 is about 3566.1142718651. The cubic root of 12717171 is about 233.4157570486.

Adding to 12717171 its reverse (17171721), we get a palindrome (29888892).

It can be divided in two parts, 1 and 2717171, that added together give a palindrome (2717172).

The spelling of 12717171 in words is "twelve million, seven hundred seventeen thousand, one hundred seventy-one".