12517471 has 4 divisors (see below), whose sum is σ = 12676000. Its totient is φ = 12358944.

The previous prime is 12517403. The next prime is 12517481. The reversal of 12517471 is 17471521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17471521 = 379 ⋅46099.

It is a cyclic number.

It is not a de Polignac number, because 12517471 - 2¹¹ = 12515423 is a prime.

It is a super-3 number, since 3×12517471³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12517481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79146 + ... + 79303.

It is an arithmetic number, because the mean of its divisors is an integer number (3169000).

Almost surely, 2^12517471 is an apocalyptic number.

12517471 is a deficient number, since it is larger than the sum of its proper divisors (158529).

12517471 is an equidigital number, since it uses as much as digits as its factorization.

12517471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158528.

The product of its digits is 1960, while the sum is 28.

The square root of 12517471 is about 3538.0038157130. The cubic root of 12517471 is about 232.1875156100.

Adding to 12517471 its reverse (17471521), we get a palindrome (29988992).

The spelling of 12517471 in words is "twelve million, five hundred seventeen thousand, four hundred seventy-one".