209091119 has 2 divisors, whose sum is σ = 209091120. Its totient is φ = 209091118.

The previous prime is 209091101. The next prime is 209091139. The reversal of 209091119 is 911190902.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-209091119 is a prime.

It is a super-2 number, since 2×209091119² = 87438192089344322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (209091139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104545559 + 104545560.

It is an arithmetic number, because the mean of its divisors is an integer number (104545560).

Almost surely, 2^209091119 is an apocalyptic number.

209091119 is a deficient number, since it is larger than the sum of its proper divisors (1).

209091119 is an equidigital number, since it uses as much as digits as its factorization.

209091119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 32.

The square root of 209091119 is about 14459.9833679019. The cubic root of 209091119 is about 593.5334444391.

The spelling of 209091119 in words is "two hundred nine million, ninety-one thousand, one hundred nineteen".