1155528 has 48 divisors (see below), whose sum is σ = 3416400. Its totient is φ = 349920.

The previous prime is 1155527. The next prime is 1155529. The reversal of 1155528 is 8255511.

It is an interprime number because it is at equal distance from previous prime (1155527) and next prime (1155529).

It is not an unprimeable number, because it can be changed into a prime (1155527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63 + ... + 1521.

It is an arithmetic number, because the mean of its divisors is an integer number (71175).

2^1155528 is an apocalyptic number.

1155528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1155528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1708200).

1155528 is an abundant number, since it is smaller than the sum of its proper divisors (2260872).

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

1155528 is a wasteful number, since it uses less digits than its factorization.

1155528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482 (or 1475 counting only the distinct ones).

The product of its digits is 2000, while the sum is 27.

The square root of 1155528 is about 1074.9548827742. The cubic root of 1155528 is about 104.9365603177.

The spelling of 1155528 in words is "one million, one hundred fifty-five thousand, five hundred twenty-eight".