12518105 has 16 divisors (see below), whose sum is σ = 15375360. Its totient is φ = 9782208.

The previous prime is 12518087. The next prime is 12518119. The reversal of 12518105 is 50181521.

It is a cyclic number.

It is not a de Polignac number, because 12518105 - 2⁸ = 12517849 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 56024 + ... + 56246.

It is an arithmetic number, because the mean of its divisors is an integer number (960960).

Almost surely, 2^12518105 is an apocalyptic number.

It is an amenable number.

12518105 is a deficient number, since it is larger than the sum of its proper divisors (2857255).

12518105 is a wasteful number, since it uses less digits than its factorization.

12518105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 12518105 is about 3538.0934131252. The cubic root of 12518105 is about 232.1914355818.

Adding to 12518105 its reverse (50181521), we get a palindrome (62699626).

The spelling of 12518105 in words is "twelve million, five hundred eighteen thousand, one hundred five".