41604581 has 2 divisors, whose sum is σ = 41604582. Its totient is φ = 41604580.

The previous prime is 41604533. The next prime is 41604583. The reversal of 41604581 is 18540614.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38328481 + 3276100 = 6191^2 + 1810^2 .

It is a cyclic number.

It is not a de Polignac number, because 41604581 - 2¹⁰ = 41603557 is a prime.

It is a super-2 number, since 2×41604581² = 3461882320371122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 41604583, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41604583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20802290 + 20802291.

It is an arithmetic number, because the mean of its divisors is an integer number (20802291).

Almost surely, 2^41604581 is an apocalyptic number.

It is an amenable number.

41604581 is a deficient number, since it is larger than the sum of its proper divisors (1).

41604581 is an equidigital number, since it uses as much as digits as its factorization.

41604581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 41604581 is about 6450.1613158122. The cubic root of 41604581 is about 346.5083603918.

The spelling of 41604581 in words is "forty-one million, six hundred four thousand, five hundred eighty-one".