41640061 has 2 divisors, whose sum is σ = 41640062. Its totient is φ = 41640060.

The previous prime is 41640047. The next prime is 41640083. The reversal of 41640061 is 16004614.

It is an a-pointer prime, because the next prime (41640083) can be obtained adding 41640061 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38007225 + 3632836 = 6165^2 + 1906^2 .

It is a cyclic number.

It is not a de Polignac number, because 41640061 - 2⁵ = 41640029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41640041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20820030 + 20820031.

It is an arithmetic number, because the mean of its divisors is an integer number (20820031).

Almost surely, 2^41640061 is an apocalyptic number.

It is an amenable number.

41640061 is a deficient number, since it is larger than the sum of its proper divisors (1).

41640061 is an equidigital number, since it uses as much as digits as its factorization.

41640061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 41640061 is about 6452.9110485114. The cubic root of 41640061 is about 346.6068321082.

Adding to 41640061 its reverse (16004614), we get a palindrome (57644675).

The spelling of 41640061 in words is "forty-one million, six hundred forty thousand, sixty-one".