12775232 has 28 divisors (see below), whose sum is σ = 25464516. Its totient is φ = 6359040.

The previous prime is 12775229. The next prime is 12775237. The reversal of 12775232 is 23257721.

It can be written as a sum of positive squares in 2 ways, for example, as 2637376 + 10137856 = 1624^2 + 3184^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12775195 and 12775204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12775237) 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, 27482 + ... + 27942.

It is an arithmetic number, because the mean of its divisors is an integer number (909447).

Almost surely, 2^12775232 is an apocalyptic number.

It is an amenable number.

12775232 is a deficient number, since it is larger than the sum of its proper divisors (12689284).

12775232 is an equidigital number, since it uses as much as digits as its factorization.

12775232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906 (or 896 counting only the distinct ones).

The product of its digits is 5880, while the sum is 29.

The square root of 12775232 is about 3574.2456546802. The cubic root of 12775232 is about 233.7704423198.

The spelling of 12775232 in words is "twelve million, seven hundred seventy-five thousand, two hundred thirty-two".