41536681 has 8 divisors (see below), whose sum is σ = 42740424. Its totient is φ = 40337280.

The previous prime is 41536657. The next prime is 41536697. The reversal of 41536681 is 18663514.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16736281 + 24800400 = 4091^2 + 4980^2 .

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 41536681 - 2⁹ = 41536169 is a prime.

It is a super-2 number, since 2×41536681² = 3450591736991522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41536631) 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, 34221 + ... + 35413.

It is an arithmetic number, because the mean of its divisors is an integer number (5342553).

Almost surely, 2^41536681 is an apocalyptic number.

It is an amenable number.

41536681 is a deficient number, since it is larger than the sum of its proper divisors (1203743).

41536681 is a wasteful number, since it uses less digits than its factorization.

41536681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171.

The product of its digits is 17280, while the sum is 34.

The square root of 41536681 is about 6444.8957322830. The cubic root of 41536681 is about 346.3197535272.

The spelling of 41536681 in words is "forty-one million, five hundred thirty-six thousand, six hundred eighty-one".