12257732 has 6 divisors (see below), whose sum is σ = 21451038. Its totient is φ = 6128864.

The previous prime is 12257711. The next prime is 12257737. The reversal of 12257732 is 23775221.

It can be written as a sum of positive squares in only one way, i.e., 9388096 + 2869636 = 3064^2 + 1694^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12257695 and 12257704.

It is not an unprimeable number, because it can be changed into a prime (12257737) 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 as a sum of consecutive naturals, namely, 1532213 + ... + 1532220.

It is an arithmetic number, because the mean of its divisors is an integer number (3575173).

Almost surely, 2^12257732 is an apocalyptic number.

It is an amenable number.

12257732 is a deficient number, since it is larger than the sum of its proper divisors (9193306).

12257732 is a wasteful number, since it uses less digits than its factorization.

12257732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3064437 (or 3064435 counting only the distinct ones).

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

The square root of 12257732 is about 3501.1043971867. The cubic root of 12257732 is about 230.5703049375.

The spelling of 12257732 in words is "twelve million, two hundred fifty-seven thousand, seven hundred thirty-two".