12047528 has 16 divisors (see below), whose sum is σ = 23368500. Its totient is φ = 5815936.

The previous prime is 12047513. The next prime is 12047531. The reversal of 12047528 is 82574021.

It can be written as a sum of positive squares in 2 ways, for example, as 10876804 + 1170724 = 3298^2 + 1082^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a self number, because there is not a number n which added to its sum of digits gives 12047528.

It is an unprimeable number.

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, 25733 + ... + 26196.

Almost surely, 2^12047528 is an apocalyptic number.

It is an amenable number.

12047528 is a deficient number, since it is larger than the sum of its proper divisors (11320972).

12047528 is a wasteful number, since it uses less digits than its factorization.

12047528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51964 (or 51960 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 12047528 is about 3470.9549118362. The cubic root of 12047528 is about 229.2447057783.

The spelling of 12047528 in words is "twelve million, forty-seven thousand, five hundred twenty-eight".