561045130 has 16 divisors (see below), whose sum is σ = 1042458624. Its totient is φ = 217178640.

The previous prime is 561045109. The next prime is 561045131. The reversal of 561045130 is 31540165.

It is a junction number, because it is equal to n+sod(n) for n = 561045095 and 561045104.

It is not an unprimeable number, because it can be changed into a prime (561045131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 904602 + ... + 905221.

It is an arithmetic number, because the mean of its divisors is an integer number (65153664).

Almost surely, 2^561045130 is an apocalyptic number.

561045130 is a deficient number, since it is larger than the sum of its proper divisors (481413494).

561045130 is a wasteful number, since it uses less digits than its factorization.

561045130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809861.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 561045130 is about 23686.3912405415. The cubic root of 561045130 is about 824.7695125947.

Adding to 561045130 its reverse (31540165), we get a palindrome (592585295).

The spelling of 561045130 in words is "five hundred sixty-one million, forty-five thousand, one hundred thirty".