12818156 has 24 divisors (see below), whose sum is σ = 24618384. Its totient is φ = 5803200.

The previous prime is 12818123. The next prime is 12818161. The reversal of 12818156 is 65181821.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

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 7 ways as a sum of consecutive naturals, for example, 431 + ... + 5081.

It is an arithmetic number, because the mean of its divisors is an integer number (1025766).

Almost surely, 2^12818156 is an apocalyptic number.

It is an amenable number.

12818156 is a deficient number, since it is larger than the sum of its proper divisors (11800228).

12818156 is a wasteful number, since it uses less digits than its factorization.

12818156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4721 (or 4719 counting only the distinct ones).

The product of its digits is 3840, while the sum is 32.

The square root of 12818156 is about 3580.2452429966. The cubic root of 12818156 is about 234.0319677756.

Adding to 12818156 its reverse (65181821), we get a palindrome (77999977).

It can be divided in two parts, 1281815 and 6, that added together give a palindrome (1281821).

The spelling of 12818156 in words is "twelve million, eight hundred eighteen thousand, one hundred fifty-six".