12943136 has 24 divisors (see below), whose sum is σ = 25562124. Its totient is φ = 6451200.

The previous prime is 12943111. The next prime is 12943153. The reversal of 12943136 is 63134921.

12943136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12816400 + 126736 = 3580^2 + 356^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12943099 and 12943108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18896 + ... + 19568.

Almost surely, 2^12943136 is an apocalyptic number.

12943136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12943136 is a deficient number, since it is larger than the sum of its proper divisors (12618988).

12943136 is an equidigital number, since it uses as much as digits as its factorization.

12943136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284 (or 1276 counting only the distinct ones).

The product of its digits is 3888, while the sum is 29.

The square root of 12943136 is about 3597.6570153365. The cubic root of 12943136 is about 234.7901310248.

The spelling of 12943136 in words is "twelve million, nine hundred forty-three thousand, one hundred thirty-six".