41171985 has 24 divisors (see below), whose sum is σ = 71571240. Its totient is φ = 21894912.

The previous prime is 41171981. The next prime is 41171987. The reversal of 41171985 is 58917114.

It can be written as a sum of positive squares in 4 ways, for example, as 18045504 + 23126481 = 4248^2 + 4809^2 .

It is not a de Polignac number, because 41171985 - 2² = 41171981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41171981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17287 + ... + 19523.

It is an arithmetic number, because the mean of its divisors is an integer number (2982135).

Almost surely, 2^41171985 is an apocalyptic number.

41171985 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

41171985 is a deficient number, since it is larger than the sum of its proper divisors (30399255).

41171985 is a wasteful number, since it uses less digits than its factorization.

41171985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2657 (or 2654 counting only the distinct ones).

The product of its digits is 10080, while the sum is 36.

The square root of 41171985 is about 6416.5399554589. The cubic root of 41171985 is about 345.3031991175.

The spelling of 41171985 in words is "forty-one million, one hundred seventy-one thousand, nine hundred eighty-five".