271320191 has 2 divisors, whose sum is σ = 271320192. Its totient is φ = 271320190.

The previous prime is 271320163. The next prime is 271320193. The reversal of 271320191 is 191023172.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-271320191 is a prime.

It is a super-2 number, since 2×271320191² = 147229292088552962, which contains 22 as substring.

Together with 271320193, 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 271320191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (271320193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135660095 + 135660096.

It is an arithmetic number, because the mean of its divisors is an integer number (135660096).

Almost surely, 2^271320191 is an apocalyptic number.

271320191 is a deficient number, since it is larger than the sum of its proper divisors (1).

271320191 is an equidigital number, since it uses as much as digits as its factorization.

271320191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 271320191 is about 16471.7998712952. The cubic root of 271320191 is about 647.3821262948.

The spelling of 271320191 in words is "two hundred seventy-one million, three hundred twenty thousand, one hundred ninety-one".