41199661 has 2 divisors, whose sum is σ = 41199662. Its totient is φ = 41199660.

The previous prime is 41199659. The next prime is 41199671. The reversal of 41199661 is 16699114.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22146436 + 19053225 = 4706^2 + 4365^2 .

It is a cyclic number.

It is not a de Polignac number, because 41199661 - 2¹ = 41199659 is a prime.

Together with 41199659, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41199661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41199671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20599830 + 20599831.

It is an arithmetic number, because the mean of its divisors is an integer number (20599831).

Almost surely, 2^41199661 is an apocalyptic number.

It is an amenable number.

41199661 is a deficient number, since it is larger than the sum of its proper divisors (1).

41199661 is an equidigital number, since it uses as much as digits as its factorization.

41199661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 37.

The square root of 41199661 is about 6418.6962071748. The cubic root of 41199661 is about 345.3805532602.

The spelling of 41199661 in words is "forty-one million, one hundred ninety-nine thousand, six hundred sixty-one".