12518538 has 8 divisors (see below), whose sum is σ = 25037088. Its totient is φ = 4172844.

The previous prime is 12518531. The next prime is 12518557. The reversal of 12518538 is 83581521.

It is a happy number.

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

12518538 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 12518499 and 12518508.

It is not an unprimeable number, because it can be changed into a prime (12518531) 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 3 ways as a sum of consecutive naturals, for example, 1043206 + ... + 1043217.

It is an arithmetic number, because the mean of its divisors is an integer number (3129636).

Almost surely, 2^12518538 is an apocalyptic number.

12518538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12518538 is a wasteful number, since it uses less digits than its factorization.

12518538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086428.

The product of its digits is 9600, while the sum is 33.

The square root of 12518538 is about 3538.1546037447. The cubic root of 12518538 is about 232.1941127105.

The spelling of 12518538 in words is "twelve million, five hundred eighteen thousand, five hundred thirty-eight".