12738212 has 12 divisors (see below), whose sum is σ = 22894620. Its totient is φ = 6196896.

The previous prime is 12738211. The next prime is 12738223. The reversal of 12738212 is 21283721.

It can be written as a sum of positive squares in 2 ways, for example, as 8386816 + 4351396 = 2896^2 + 2086^2 .

It is not an unprimeable number, because it can be changed into a prime (12738211) 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, 42887 + ... + 43182.

It is an arithmetic number, because the mean of its divisors is an integer number (1907885).

Almost surely, 2^12738212 is an apocalyptic number.

It is an amenable number.

12738212 is a deficient number, since it is larger than the sum of its proper divisors (10156408).

12738212 is a wasteful number, since it uses less digits than its factorization.

12738212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86110 (or 86108 counting only the distinct ones).

The product of its digits is 1344, while the sum is 26.

The square root of 12738212 is about 3569.0631824052. The cubic root of 12738212 is about 233.5444176025.

The spelling of 12738212 in words is "twelve million, seven hundred thirty-eight thousand, two hundred twelve".