41681641 has 2 divisors, whose sum is σ = 41681642. Its totient is φ = 41681640.

The previous prime is 41681623. The next prime is 41681659. The reversal of 41681641 is 14618614.

It is a balanced prime because it is at equal distance from previous prime (41681623) and next prime (41681659).

It can be written as a sum of positive squares in only one way, i.e., 31416025 + 10265616 = 5605^2 + 3204^2 .

It is a cyclic number.

It is not a de Polignac number, because 41681641 - 2²³ = 33293033 is a prime.

It is not a weakly prime, because it can be changed into another prime (41681141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20840820 + 20840821.

It is an arithmetic number, because the mean of its divisors is an integer number (20840821).

Almost surely, 2^41681641 is an apocalyptic number.

It is an amenable number.

41681641 is a deficient number, since it is larger than the sum of its proper divisors (1).

41681641 is an equidigital number, since it uses as much as digits as its factorization.

41681641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 31.

The square root of 41681641 is about 6456.1320463572. The cubic root of 41681641 is about 346.7221626925.

The spelling of 41681641 in words is "forty-one million, six hundred eighty-one thousand, six hundred forty-one".