41101561 has 8 divisors (see below), whose sum is σ = 42302664. Its totient is φ = 39905280.

The previous prime is 41101559. The next prime is 41101573. The reversal of 41101561 is 16510114.

It can be written as a sum of positive squares in 4 ways, for example, as 22231225 + 18870336 = 4715^2 + 4344^2 .

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 41101561 - 2¹ = 41101559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41101061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22851 + ... + 24583.

It is an arithmetic number, because the mean of its divisors is an integer number (5287833).

Almost surely, 2^41101561 is an apocalyptic number.

It is an amenable number.

41101561 is a deficient number, since it is larger than the sum of its proper divisors (1201103).

41101561 is a wasteful number, since it uses less digits than its factorization.

41101561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 41101561 is about 6411.0499140156. The cubic root of 41101561 is about 345.1062082862.

Adding to 41101561 its reverse (16510114), we get a palindrome (57611675).

It can be divided in two parts, 4110 and 1561, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 41101561 in words is "forty-one million, one hundred one thousand, five hundred sixty-one".