12818356 has 12 divisors (see below), whose sum is σ = 22664068. Its totient is φ = 6342912.

The previous prime is 12818353. The next prime is 12818387. The reversal of 12818356 is 65381821.

It can be written as a sum of positive squares in 2 ways, for example, as 1822500 + 10995856 = 1350^2 + 3316^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12818353) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 16131 + ... + 16906.

Almost surely, 2^12818356 is an apocalyptic number.

It is an amenable number.

12818356 is a deficient number, since it is larger than the sum of its proper divisors (9845712).

12818356 is a wasteful number, since it uses less digits than its factorization.

12818356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33138 (or 33136 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The square root of 12818356 is about 3580.2731739352. The cubic root of 12818356 is about 234.0331849593.

The spelling of 12818356 in words is "twelve million, eight hundred eighteen thousand, three hundred fifty-six".