12724118 has 12 divisors (see below), whose sum is σ = 20979420. Its totient is φ = 5783580.

The previous prime is 12724097. The next prime is 12724133. The reversal of 12724118 is 81142721.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 26048 + ... + 26531.

It is an arithmetic number, because the mean of its divisors is an integer number (1748285).

Almost surely, 2^12724118 is an apocalyptic number.

12724118 is a deficient number, since it is larger than the sum of its proper divisors (8255302).

12724118 is a wasteful number, since it uses less digits than its factorization.

12724118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52603 (or 52592 counting only the distinct ones).

The product of its digits is 896, while the sum is 26.

The square root of 12724118 is about 3567.0881682403. The cubic root of 12724118 is about 233.4582519318.

Adding to 12724118 its reverse (81142721), we get a palindrome (93866839).

The spelling of 12724118 in words is "twelve million, seven hundred twenty-four thousand, one hundred eighteen".