565128 has 48 divisors (see below), whose sum is σ = 1572480. Its totient is φ = 183264.

The previous prime is 565127. The next prime is 565163. The reversal of 565128 is 821565.

565128 is a `hidden beast` number, since 5 + 651 + 2 + 8 = 666.

565128 is nontrivially palindromic in base 11.

It is not an unprimeable number, because it can be changed into a prime (565127) 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, 3301 + ... + 3467.

It is an arithmetic number, because the mean of its divisors is an integer number (32760).

2⁵⁶⁵¹²⁸ 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 565128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (786240).

565128 is an abundant number, since it is smaller than the sum of its proper divisors (1007352).

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

565128 is a wasteful number, since it uses less digits than its factorization.

565128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 219 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 565128 is about 751.7499584303. The cubic root of 565128 is about 82.6765365716.

It can be divided in two parts, 56 and 5128, that added together give a square (5184 = 72²).

The spelling of 565128 in words is "five hundred sixty-five thousand, one hundred twenty-eight".