1147648 has 18 divisors (see below), whose sum is σ = 2291324. Its totient is φ = 573696.

The previous prime is 1147639. The next prime is 1147669. The reversal of 1147648 is 8467411.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1986 + ... + 2497.

2^1147648 is an apocalyptic number.

It is an amenable number.

1147648 is a deficient number, since it is larger than the sum of its proper divisors (1143676).

1147648 is an frugal number, since it uses more digits than its factorization.

1147648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4499 (or 4485 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 1147648 is about 1071.2833425383. The cubic root of 1147648 is about 104.6974814720.

The spelling of 1147648 in words is "one million, one hundred forty-seven thousand, six hundred forty-eight".