561143116 has 12 divisors (see below), whose sum is σ = 995453032. Its totient is φ = 276727968.

The previous prime is 561143057. The next prime is 561143137. The reversal of 561143116 is 611341165.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 960570 + ... + 961153.

Almost surely, 2^561143116 is an apocalyptic number.

It is an amenable number.

561143116 is a deficient number, since it is larger than the sum of its proper divisors (434309916).

561143116 is a wasteful number, since it uses less digits than its factorization.

561143116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921800 (or 1921798 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

The square root of 561143116 is about 23688.4595531242. The cubic root of 561143116 is about 824.8175248708.

The spelling of 561143116 in words is "five hundred sixty-one million, one hundred forty-three thousand, one hundred sixteen".