12517171 has 8 divisors (see below), whose sum is σ = 12944624. Its totient is φ = 12096000.

The previous prime is 12517163. The next prime is 12517187. The reversal of 12517171 is 17171521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12517171 - 2³ = 12517163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12515171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2671 + ... + 5671.

It is an arithmetic number, because the mean of its divisors is an integer number (1618078).

Almost surely, 2^12517171 is an apocalyptic number.

12517171 is a deficient number, since it is larger than the sum of its proper divisors (427453).

12517171 is an equidigital number, since it uses as much as digits as its factorization.

12517171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3141.

The product of its digits is 490, while the sum is 25.

The square root of 12517171 is about 3537.9614186704. The cubic root of 12517171 is about 232.1856606876.

Adding to 12517171 its reverse (17171521), we get a palindrome (29688692).

The spelling of 12517171 in words is "twelve million, five hundred seventeen thousand, one hundred seventy-one".