12543392 has 24 divisors (see below), whose sum is σ = 24945732. Its totient is φ = 6208000.

The previous prime is 12543379. The next prime is 12543397. The reversal of 12543392 is 29334521.

It can be written as a sum of positive squares in 2 ways, for example, as 10995856 + 1547536 = 3316^2 + 1244^2 .

It is not an unprimeable number, because it can be changed into a prime (12543397) 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, 1292 + ... + 5172.

Almost surely, 2^12543392 is an apocalyptic number.

It is an amenable number.

12543392 is a deficient number, since it is larger than the sum of its proper divisors (12402340).

12543392 is a wasteful number, since it uses less digits than its factorization.

12543392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3992 (or 3984 counting only the distinct ones).

The product of its digits is 6480, while the sum is 29.

The square root of 12543392 is about 3541.6651450977. The cubic root of 12543392 is about 232.3476753047.

The spelling of 12543392 in words is "twelve million, five hundred forty-three thousand, three hundred ninety-two".