41581577 has 2 divisors, whose sum is σ = 41581578. Its totient is φ = 41581576.

The previous prime is 41581549. The next prime is 41581583. The reversal of 41581577 is 77518514.

It is a happy number.

41581577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33223696 + 8357881 = 5764^2 + 2891^2 .

It is a cyclic number.

It is not a de Polignac number, because 41581577 - 2²⁰ = 40533001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41581577.

It is not a weakly prime, because it can be changed into another prime (41581517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20790788 + 20790789.

It is an arithmetic number, because the mean of its divisors is an integer number (20790789).

Almost surely, 2^41581577 is an apocalyptic number.

It is an amenable number.

41581577 is a deficient number, since it is larger than the sum of its proper divisors (1).

41581577 is an equidigital number, since it uses as much as digits as its factorization.

41581577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39200, while the sum is 38.

The square root of 41581577 is about 6448.3778580353. The cubic root of 41581577 is about 346.4444848304. Note that the first 4 decimals are identical.

The spelling of 41581577 in words is "forty-one million, five hundred eighty-one thousand, five hundred seventy-seven".