12517241 has 8 divisors (see below), whose sum is σ = 14126400. Its totient is φ = 10986640.

The previous prime is 12517231. The next prime is 12517243. The reversal of 12517241 is 14271521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12517241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12517243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19301 + ... + 19938.

It is an arithmetic number, because the mean of its divisors is an integer number (1765800).

Almost surely, 2^12517241 is an apocalyptic number.

12517241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12517241 is a deficient number, since it is larger than the sum of its proper divisors (1609159).

12517241 is a wasteful number, since it uses less digits than its factorization.

12517241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39279.

The product of its digits is 560, while the sum is 23.

The square root of 12517241 is about 3537.9713113591. The cubic root of 12517241 is about 232.1860935055.

Adding to 12517241 its reverse (14271521), we get a palindrome (26788762).

The spelling of 12517241 in words is "twelve million, five hundred seventeen thousand, two hundred forty-one".