2109559271 has 2 divisors, whose sum is σ = 2109559272. Its totient is φ = 2109559270.

The previous prime is 2109559247. The next prime is 2109559307. The reversal of 2109559271 is 1729559012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2109559271 - 2²² = 2105364967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2109559211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054779635 + 1054779636.

It is an arithmetic number, because the mean of its divisors is an integer number (1054779636).

Almost surely, 2^2109559271 is an apocalyptic number.

2109559271 is a deficient number, since it is larger than the sum of its proper divisors (1).

2109559271 is an equidigital number, since it uses as much as digits as its factorization.

2109559271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 41.

The square root of 2109559271 is about 45929.9387219273. The cubic root of 2109559271 is about 1282.5193039841.

The spelling of 2109559271 in words is "two billion, one hundred nine million, five hundred fifty-nine thousand, two hundred seventy-one".