1148864 has 28 divisors (see below), whose sum is σ = 2362200. Its totient is φ = 553728.

The previous prime is 1148857. The next prime is 1148867. The reversal of 1148864 is 4688411.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 1148864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1547 + ... + 2165.

2^1148864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1148864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1181100).

1148864 is an abundant number, since it is smaller than the sum of its proper divisors (1213336).

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

1148864 is an equidigital number, since it uses as much as digits as its factorization.

1148864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 650 counting only the distinct ones).

The product of its digits is 6144, while the sum is 32.

The square root of 1148864 is about 1071.8507358770. The cubic root of 1148864 is about 104.7344461159.

The spelling of 1148864 in words is "one million, one hundred forty-eight thousand, eight hundred sixty-four".