561066135 has 32 divisors (see below), whose sum is σ = 1027095552. Its totient is φ = 256200960.

The previous prime is 561066127. The next prime is 561066151. The reversal of 561066135 is 531660165.

It is not a de Polignac number, because 561066135 - 2³ = 561066127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 561066096 and 561066105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112750 + ... + 117620.

It is an arithmetic number, because the mean of its divisors is an integer number (32096736).

Almost surely, 2^561066135 is an apocalyptic number.

561066135 is a deficient number, since it is larger than the sum of its proper divisors (466029417).

561066135 is a wasteful number, since it uses less digits than its factorization.

561066135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5983.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 561066135 is about 23686.8346344546. The cubic root of 561066135 is about 824.7798053302.

The spelling of 561066135 in words is "five hundred sixty-one million, sixty-six thousand, one hundred thirty-five".