561104 has 10 divisors (see below), whose sum is σ = 1087170. Its totient is φ = 280544.

The previous prime is 561103. The next prime is 561109. The reversal of 561104 is 401165.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 559504 + 1600 = 748^2 + 40^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17519 + ... + 17550.

It is an arithmetic number, because the mean of its divisors is an integer number (108717).

2⁵⁶¹¹⁰⁴ is an apocalyptic number.

It is an amenable number.

561104 is a deficient number, since it is larger than the sum of its proper divisors (526066).

561104 is a wasteful number, since it uses less digits than its factorization.

561104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35077 (or 35071 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 561104 is about 749.0687551887. The cubic root of 561104 is about 82.4798359046.

Adding to 561104 its reverse (401165), we get a palindrome (962269).

The spelling of 561104 in words is "five hundred sixty-one thousand, one hundred four".