12537328 has 20 divisors (see below), whose sum is σ = 24356080. Its totient is φ = 6251904.

The previous prime is 12537311. The next prime is 12537331. The reversal of 12537328 is 82373521.

It is a self number, because there is not a number n which added to its sum of digits gives 12537328.

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, 6988 + ... + 8596.

It is an arithmetic number, because the mean of its divisors is an integer number (1217804).

Almost surely, 2^12537328 is an apocalyptic number.

It is an amenable number.

12537328 is a deficient number, since it is larger than the sum of its proper divisors (11818752).

12537328 is a wasteful number, since it uses less digits than its factorization.

12537328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104 (or 2098 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 12537328 is about 3540.8089471193. The cubic root of 12537328 is about 232.3102270766.

The spelling of 12537328 in words is "twelve million, five hundred thirty-seven thousand, three hundred twenty-eight".