561061101 has 8 divisors (see below), whose sum is σ = 750863520. Its totient is φ = 372649712.

The previous prime is 561061093. The next prime is 561061117. The reversal of 561061101 is 101160165.

561061101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 561061101 - 2³ = 561061093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561061181) 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, 346815 + ... + 348428.

It is an arithmetic number, because the mean of its divisors is an integer number (93857940).

Almost surely, 2^561061101 is an apocalyptic number.

It is an amenable number.

561061101 is a deficient number, since it is larger than the sum of its proper divisors (189802419).

561061101 is a wasteful number, since it uses less digits than its factorization.

561061101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695515.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 561061101 is about 23686.7283726563. The cubic root of 561061101 is about 824.7773386252. Note that the first 3 decimals are identical.

The spelling of 561061101 in words is "five hundred sixty-one million, sixty-one thousand, one hundred one".