561900167 has 16 divisors (see below), whose sum is σ = 643206240. Its totient is φ = 487461888.

The previous prime is 561900161. The next prime is 561900169. The reversal of 561900167 is 761009165.

It is a cyclic number.

It is not a de Polignac number, because 561900167 - 2²⁰ = 560851591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561900161) 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 15 ways as a sum of consecutive naturals, for example, 11558 + ... + 35459.

It is an arithmetic number, because the mean of its divisors is an integer number (40200390).

Almost surely, 2^561900167 is an apocalyptic number.

561900167 is a deficient number, since it is larger than the sum of its proper divisors (81306073).

561900167 is a wasteful number, since it uses less digits than its factorization.

561900167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47090.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 561900167 is about 23704.4334882739. The cubic root of 561900167 is about 825.1882849105.

The spelling of 561900167 in words is "five hundred sixty-one million, nine hundred thousand, one hundred sixty-seven".