561152 has 26 divisors (see below), whose sum is σ = 1130358. Its totient is φ = 278528.

The previous prime is 561109. The next prime is 561161. The reversal of 561152 is 251165.

It can be written as a sum of positive squares in only one way, i.e., 495616 + 65536 = 704^2 + 256^2 .

It is a nialpdrome in base 8.

It is a congruent number.

It is an unprimeable number.

561152 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4028 + ... + 4164.

2⁵⁶¹¹⁵² 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 561152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (565179).

561152 is an abundant number, since it is smaller than the sum of its proper divisors (569206).

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

561152 is an equidigital number, since it uses as much as digits as its factorization.

561152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 139 counting only the distinct ones).

The product of its digits is 300, while the sum is 20.

The square root of 561152 is about 749.1007942861. The cubic root of 561152 is about 82.4821877676.

The spelling of 561152 in words is "five hundred sixty-one thousand, one hundred fifty-two".