561127907 has 8 divisors (see below), whose sum is σ = 572990976. Its totient is φ = 549312192.

The previous prime is 561127901. The next prime is 561127921. The reversal of 561127907 is 709721165.

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

It is a cyclic number.

It is not a de Polignac number, because 561127907 - 2¹⁸ = 560865763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561127901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12638 + ... + 35804.

It is an arithmetic number, because the mean of its divisors is an integer number (71623872).

Almost surely, 2^561127907 is an apocalyptic number.

561127907 is a deficient number, since it is larger than the sum of its proper divisors (11863069).

561127907 is a wasteful number, since it uses less digits than its factorization.

561127907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23677.

The product of its (nonzero) digits is 26460, while the sum is 38.

The square root of 561127907 is about 23688.1385296523. The cubic root of 561127907 is about 824.8100729614.

The spelling of 561127907 in words is "five hundred sixty-one million, one hundred twenty-seven thousand, nine hundred seven".