41112561 has 32 divisors (see below), whose sum is σ = 66447360. Its totient is φ = 22087296.

The previous prime is 41112551. The next prime is 41112581. The reversal of 41112561 is 16521114.

It is not a de Polignac number, because 41112561 - 2⁵ = 41112529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (41112551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66325 + ... + 66941.

It is an arithmetic number, because the mean of its divisors is an integer number (2076480).

Almost surely, 2^41112561 is an apocalyptic number.

It is an amenable number.

41112561 is a deficient number, since it is larger than the sum of its proper divisors (25334799).

41112561 is a wasteful number, since it uses less digits than its factorization.

41112561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813.

The product of its digits is 240, while the sum is 21.

The square root of 41112561 is about 6411.9077504281. The cubic root of 41112561 is about 345.1369924348.

Adding to 41112561 its reverse (16521114), we get a palindrome (57633675).

The spelling of 41112561 in words is "forty-one million, one hundred twelve thousand, five hundred sixty-one".