561112071 has 16 divisors (see below), whose sum is σ = 840731136. Its totient is φ = 330286176.

The previous prime is 561112051. The next prime is 561112073. The reversal of 561112071 is 170211165.

It is not a de Polignac number, because 561112071 - 2¹⁵ = 561079303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561112073) 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 15 ways as a sum of consecutive naturals, for example, 311875 + ... + 313668.

It is an arithmetic number, because the mean of its divisors is an integer number (52545696).

Almost surely, 2^561112071 is an apocalyptic number.

561112071 is a deficient number, since it is larger than the sum of its proper divisors (279619065).

561112071 is a wasteful number, since it uses less digits than its factorization.

561112071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625582.

The product of its (nonzero) digits is 420, while the sum is 24.

The square root of 561112071 is about 23687.8042671751. The cubic root of 561112071 is about 824.8023136994.

The spelling of 561112071 in words is "five hundred sixty-one million, one hundred twelve thousand, seventy-one".