561071118 has 8 divisors (see below), whose sum is σ = 1122142248. Its totient is φ = 187023704.

The previous prime is 561071117. The next prime is 561071143. The reversal of 561071118 is 811170165.

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

561071118 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561071117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46755921 + ... + 46755932.

It is an arithmetic number, because the mean of its divisors is an integer number (140267781).

Almost surely, 2^561071118 is an apocalyptic number.

561071118 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561071118 is a wasteful number, since it uses less digits than its factorization.

561071118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93511858.

The product of its (nonzero) digits is 1680, while the sum is 30.

The square root of 561071118 is about 23686.9398192337. The cubic root of 561071118 is about 824.7822470302.

The spelling of 561071118 in words is "five hundred sixty-one million, seventy-one thousand, one hundred eighteen".