41722181 has 2 divisors, whose sum is σ = 41722182. Its totient is φ = 41722180.

The previous prime is 41722127. The next prime is 41722193. The reversal of 41722181 is 18122714.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36409156 + 5313025 = 6034^2 + 2305^2 .

It is a cyclic number.

It is not a de Polignac number, because 41722181 - 2¹⁰ = 41721157 is a prime.

It is a super-3 number, since 3×41722181³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 41722181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41722481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20861090 + 20861091.

It is an arithmetic number, because the mean of its divisors is an integer number (20861091).

Almost surely, 2^41722181 is an apocalyptic number.

It is an amenable number.

41722181 is a deficient number, since it is larger than the sum of its proper divisors (1).

41722181 is an equidigital number, since it uses as much as digits as its factorization.

41722181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 896, while the sum is 26.

The square root of 41722181 is about 6459.2709340916. The cubic root of 41722181 is about 346.8345348030.

Adding to 41722181 its reverse (18122714), we get a palindrome (59844895).

The spelling of 41722181 in words is "forty-one million, seven hundred twenty-two thousand, one hundred eighty-one".