4112561 has 4 divisors (see below), whose sum is σ = 4291392. Its totient is φ = 3933732.

The previous prime is 4112557. The next prime is 4112573. The reversal of 4112561 is 1652114.

4112561 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 4112561 - 2² = 4112557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4112551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89381 + ... + 89426.

It is an arithmetic number, because the mean of its divisors is an integer number (1072848).

Almost surely, 2^4112561 is an apocalyptic number.

It is an amenable number.

4112561 is a deficient number, since it is larger than the sum of its proper divisors (178831).

4112561 is a wasteful number, since it uses less digits than its factorization.

4112561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178830.

The product of its digits is 240, while the sum is 20.

The square root of 4112561 is about 2027.9450189786. The cubic root of 4112561 is about 160.2153480484.

Adding to 4112561 its reverse (1652114), we get a palindrome (5764675).

The spelling of 4112561 in words is "four million, one hundred twelve thousand, five hundred sixty-one".