564042161 has 4 divisors (see below), whose sum is σ = 566187072. Its totient is φ = 561897252.

The previous prime is 564042131. The next prime is 564042209. The reversal of 564042161 is 161240465.

564042161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 564042161 - 2¹⁸ = 563780017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (564042131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1072061 + ... + 1072586.

It is an arithmetic number, because the mean of its divisors is an integer number (141546768).

Almost surely, 2^564042161 is an apocalyptic number.

It is an amenable number.

564042161 is a deficient number, since it is larger than the sum of its proper divisors (2144911).

564042161 is a wasteful number, since it uses less digits than its factorization.

564042161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144910.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 564042161 is about 23749.5718066663. The cubic root of 564042161 is about 826.2355095520.

The spelling of 564042161 in words is "five hundred sixty-four million, forty-two thousand, one hundred sixty-one".