561165141 has 16 divisors (see below), whose sum is σ = 754588800. Its totient is φ = 370935360.

The previous prime is 561165097. The next prime is 561165151. The reversal of 561165141 is 141561165.

561165141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 561165141 - 2⁷ = 561165013 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 561165099 and 561165108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561165151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 474571 + ... + 475751.

It is an arithmetic number, because the mean of its divisors is an integer number (47161800).

Almost surely, 2^561165141 is an apocalyptic number.

It is an amenable number.

561165141 is a deficient number, since it is larger than the sum of its proper divisors (193423659).

561165141 is a wasteful number, since it uses less digits than its factorization.

561165141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396.

The product of its digits is 3600, while the sum is 30.

The square root of 561165141 is about 23688.9244373821. The cubic root of 561165141 is about 824.8283161573.

The spelling of 561165141 in words is "five hundred sixty-one million, one hundred sixty-five thousand, one hundred forty-one".