1147568 has 20 divisors (see below), whose sum is σ = 2354760. Its totient is φ = 539904.

The previous prime is 1147567. The next prime is 1147571. The reversal of 1147568 is 8657411.

It is a happy number.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1147561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1838 + ... + 2381.

It is an arithmetic number, because the mean of its divisors is an integer number (117738).

2^1147568 is an apocalyptic number.

It is an amenable number.

1147568 is an abundant number, since it is smaller than the sum of its proper divisors (1207192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1147568 is a wasteful number, since it uses less digits than its factorization.

1147568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4244 (or 4238 counting only the distinct ones).

The product of its digits is 6720, while the sum is 32.

The square root of 1147568 is about 1071.2460034931. The cubic root of 1147568 is about 104.6950486723.

The spelling of 1147568 in words is "one million, one hundred forty-seven thousand, five hundred sixty-eight".