561344124 has 48 divisors (see below), whose sum is σ = 1459293696. Its totient is φ = 166483200.

The previous prime is 561344099. The next prime is 561344153. The reversal of 561344124 is 421443165.

It is a junction number, because it is equal to n+sod(n) for n = 561344091 and 561344100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39037 + ... + 51444.

It is an arithmetic number, because the mean of its divisors is an integer number (30401952).

Almost surely, 2^561344124 is an apocalyptic number.

It is an amenable number.

561344124 is an abundant number, since it is smaller than the sum of its proper divisors (897949572).

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

561344124 is a wasteful number, since it uses less digits than its factorization.

561344124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90546 (or 90544 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 561344124 is about 23692.7019143026. The cubic root of 561344124 is about 824.9159995283.

Adding to 561344124 its reverse (421443165), we get a palindrome (982787289).

The spelling of 561344124 in words is "five hundred sixty-one million, three hundred forty-four thousand, one hundred twenty-four".