2091090319 has 2 divisors, whose sum is σ = 2091090320. Its totient is φ = 2091090318.

The previous prime is 2091090317. The next prime is 2091090341. The reversal of 2091090319 is 9130901902.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2091090319 - 2¹ = 2091090317 is a prime.

It is a super-2 number, since 2×2091090319² = 8745317444431043522, which contains 22 as substring.

Together with 2091090317, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2091090317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1045545159 + 1045545160.

It is an arithmetic number, because the mean of its divisors is an integer number (1045545160).

Almost surely, 2^2091090319 is an apocalyptic number.

2091090319 is a deficient number, since it is larger than the sum of its proper divisors (1).

2091090319 is an equidigital number, since it uses as much as digits as its factorization.

2091090319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 2091090319 is about 45728.4410296262. The cubic root of 2091090319 is about 1278.7655577201.

The spelling of 2091090319 in words is "two billion, ninety-one million, ninety thousand, three hundred nineteen".