12613818 has 32 divisors (see below), whose sum is σ = 29614464. Its totient is φ = 3506112.

The previous prime is 12613721. The next prime is 12613823. The reversal of 12613818 is 81831621.

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 15 ways as a sum of consecutive naturals, for example, 2505 + ... + 5612.

It is an arithmetic number, because the mean of its divisors is an integer number (925452).

Almost surely, 2^12613818 is an apocalyptic number.

12613818 is an abundant number, since it is smaller than the sum of its proper divisors (17000646).

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

12613818 is a wasteful number, since it uses less digits than its factorization.

12613818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8166.

The product of its digits is 2304, while the sum is 30.

The square root of 12613818 is about 3551.5937267655. The cubic root of 12613818 is about 232.7817096316.

It can be divided in two parts, 12613 and 818, that added together give a palindrome (13431).

The spelling of 12613818 in words is "twelve million, six hundred thirteen thousand, eight hundred eighteen".