561364 has 12 divisors (see below), whose sum is σ = 1009204.
Its totient is φ = 273024.
The previous prime is 561359. The next prime is 561367. The reversal of 561364 is 463165.
It can be written as a sum of positive squares in 2 ways, for example, as 311364 + 250000 = 558^2 + 500^2
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (561367) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1749 + ... + 2044.
2561364 is an apocalyptic number.
It is an amenable number.
561364 is a deficient number, since it is larger than the sum of its proper divisors (447840).
561364 is a wasteful number, since it uses less digits than its factorization.
561364 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3834 (or 3832 counting only the distinct ones).
The product of its digits is 2160, while the sum is 25.
The square root of 561364 is about 749.2422839109.
The cubic root of 561364 is about 82.4925735586.
The spelling of 561364 in words is "five hundred sixty-one thousand, three hundred sixty-four".