41561729 has 8 divisors (see below), whose sum is σ = 45489600. Its totient is φ = 37658800.

The previous prime is 41561717. The next prime is 41561749. The reversal of 41561729 is 92716514.

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 41561729 - 2²⁰ = 40513153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41561749) 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, 2654 + ... + 9495.

It is an arithmetic number, because the mean of its divisors is an integer number (5686200).

Almost surely, 2^41561729 is an apocalyptic number.

It is an amenable number.

41561729 is a deficient number, since it is larger than the sum of its proper divisors (3927871).

41561729 is a wasteful number, since it uses less digits than its factorization.

41561729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12471.

The product of its digits is 15120, while the sum is 35.

The square root of 41561729 is about 6446.8386826413. The cubic root of 41561729 is about 346.3893536482.

It can be divided in two parts, 4156 and 1729, that added together give a palindrome (5885).

The spelling of 41561729 in words is "forty-one million, five hundred sixty-one thousand, seven hundred twenty-nine".