12518017 has 16 divisors (see below), whose sum is σ = 13893120. Its totient is φ = 11232000.

The previous prime is 12517987. The next prime is 12518021. The reversal of 12518017 is 71081521.

It is a cyclic number.

It is not a de Polignac number, because 12518017 - 2⁷ = 12517889 is a prime.

It is a super-2 number, since 2×12518017² = 313401499224578, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12517982 and 12518000.

It is not an unprimeable number, because it can be changed into a prime (12518047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31017 + ... + 31417.

It is an arithmetic number, because the mean of its divisors is an integer number (868320).

Almost surely, 2^12518017 is an apocalyptic number.

It is an amenable number.

12518017 is a deficient number, since it is larger than the sum of its proper divisors (1375103).

12518017 is a wasteful number, since it uses less digits than its factorization.

12518017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504.

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 12518017 is about 3538.0809770270. The cubic root of 12518017 is about 232.1908914927.

Adding to 12518017 its reverse (71081521), we get a palindrome (83599538).

The spelling of 12518017 in words is "twelve million, five hundred eighteen thousand, seventeen".