12518407 has 12 divisors (see below), whose sum is σ = 14018328. Its totient is φ = 11086400.

The previous prime is 12518399. The next prime is 12518411. The reversal of 12518407 is 70481521.

It is not a de Polignac number, because 12518407 - 2³ = 12518399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12518447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18153 + ... + 18829.

It is an arithmetic number, because the mean of its divisors is an integer number (1168194).

Almost surely, 2^12518407 is an apocalyptic number.

12518407 is a deficient number, since it is larger than the sum of its proper divisors (1499921).

12518407 is an equidigital number, since it uses as much as digits as its factorization.

12518407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770 (or 729 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 12518407 is about 3538.1360912209. The cubic root of 12518407 is about 232.1933027774.

Adding to 12518407 its reverse (70481521), we get a palindrome (82999928).

The spelling of 12518407 in words is "twelve million, five hundred eighteen thousand, four hundred seven".