41611681 has 4 divisors (see below), whose sum is σ = 41694912. Its totient is φ = 41528452.

The previous prime is 41611673. The next prime is 41611693. The reversal of 41611681 is 18611614.

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 41611681 - 2³ = 41611673 is a prime.

It is a super-2 number, since 2×41611681² = 3463063991291522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41611181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40861 + ... + 41866.

It is an arithmetic number, because the mean of its divisors is an integer number (10423728).

Almost surely, 2^41611681 is an apocalyptic number.

It is an amenable number.

41611681 is a deficient number, since it is larger than the sum of its proper divisors (83231).

41611681 is an equidigital number, since it uses as much as digits as its factorization.

41611681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83230.

The product of its digits is 1152, while the sum is 28.

The square root of 41611681 is about 6450.7116661652. The cubic root of 41611681 is about 346.5280703161.

The spelling of 41611681 in words is "forty-one million, six hundred eleven thousand, six hundred eighty-one".