41919209 has 2 divisors, whose sum is σ = 41919210. Its totient is φ = 41919208.

The previous prime is 41919193. The next prime is 41919211. The reversal of 41919209 is 90291914.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22090000 + 19829209 = 4700^2 + 4453^2 .

It is a cyclic number.

It is not a de Polignac number, because 41919209 - 2⁴ = 41919193 is a prime.

Together with 41919211, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (41909209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20959604 + 20959605.

It is an arithmetic number, because the mean of its divisors is an integer number (20959605).

Almost surely, 2^41919209 is an apocalyptic number.

It is an amenable number.

41919209 is a deficient number, since it is larger than the sum of its proper divisors (1).

41919209 is an equidigital number, since it uses as much as digits as its factorization.

41919209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 41919209 is about 6474.5045370283. The cubic root of 41919209 is about 347.3796391472.

The spelling of 41919209 in words is "forty-one million, nine hundred nineteen thousand, two hundred nine".