944560561 has 4 divisors (see below), whose sum is σ = 1079497792. Its totient is φ = 809623332.

The previous prime is 944560553. The next prime is 944560567. The reversal of 944560561 is 165065449.

It is a happy number.

944560561 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 not a de Polignac number, because 944560561 - 2³ = 944560553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (944560567) 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, 67468605 + ... + 67468618.

It is an arithmetic number, because the mean of its divisors is an integer number (269874448).

Almost surely, 2^944560561 is an apocalyptic number.

It is an amenable number.

944560561 is a deficient number, since it is larger than the sum of its proper divisors (134937231).

944560561 is a wasteful number, since it uses less digits than its factorization.

944560561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134937230.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 944560561 is about 30733.7039908957. The cubic root of 944560561 is about 981.1677600433.

The spelling of 944560561 in words is "nine hundred forty-four million, five hundred sixty thousand, five hundred sixty-one".