561651159 has 8 divisors (see below), whose sum is σ = 749095552. Its totient is φ = 374320440.

The previous prime is 561651133. The next prime is 561651161. The reversal of 561651159 is 951156165.

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

It is not a de Polignac number, because 561651159 - 2⁹ = 561650647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561651199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16129 + ... + 37194.

It is an arithmetic number, because the mean of its divisors is an integer number (93636944).

Almost surely, 2^561651159 is an apocalyptic number.

561651159 is a deficient number, since it is larger than the sum of its proper divisors (187444393).

561651159 is a wasteful number, since it uses less digits than its factorization.

561651159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56837.

The product of its digits is 40500, while the sum is 39.

The square root of 561651159 is about 23699.1805554538. The cubic root of 561651159 is about 825.0663718870.

The spelling of 561651159 in words is "five hundred sixty-one million, six hundred fifty-one thousand, one hundred fifty-nine".