561142760 has 32 divisors (see below), whose sum is σ = 1264044960. Its totient is φ = 224195136.

The previous prime is 561142739. The next prime is 561142763. The reversal of 561142760 is 67241165.

561142760 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (561142763) 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, 28547 + ... + 44013.

It is an arithmetic number, because the mean of its divisors is an integer number (39501405).

Almost surely, 2^561142760 is an apocalyptic number.

It is an amenable number.

561142760 is an abundant number, since it is smaller than the sum of its proper divisors (702902200).

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

561142760 is a wasteful number, since it uses less digits than its factorization.

561142760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16385 (or 16381 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 561142760 is about 23688.4520389155. The cubic root of 561142760 is about 824.8173504441.

The spelling of 561142760 in words is "five hundred sixty-one million, one hundred forty-two thousand, seven hundred sixty".