2409191 has 2 divisors, whose sum is σ = 2409192. Its totient is φ = 2409190.

The previous prime is 2409167. The next prime is 2409193. The reversal of 2409191 is 1919042.

2409191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2409191 is a prime.

It is a Sophie Germain prime.

Together with 2409193, 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 2409191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2409193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1204595 + 1204596.

It is an arithmetic number, because the mean of its divisors is an integer number (1204596).

2^2409191 is an apocalyptic number.

2409191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2409191 is an equidigital number, since it uses as much as digits as its factorization.

2409191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 2409191 is about 1552.1568864003. The cubic root of 2409191 is about 134.0572822593.

The spelling of 2409191 in words is "two million, four hundred nine thousand, one hundred ninety-one".