270191 has 2 divisors, whose sum is σ = 270192. Its totient is φ = 270190.

The previous prime is 270167. The next prime is 270209. The reversal of 270191 is 191072.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 270191 - 2¹⁰ = 269167 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 270191.

It is not a weakly prime, because it can be changed into another prime (270121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135095 + 135096.

It is an arithmetic number, because the mean of its divisors is an integer number (135096).

2²⁷⁰¹⁹¹ is an apocalyptic number.

270191 is a deficient number, since it is larger than the sum of its proper divisors (1).

270191 is an equidigital number, since it uses as much as digits as its factorization.

270191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 270191 is about 519.7989996143. The cubic root of 270191 is about 64.6482777392.

The spelling of 270191 in words is "two hundred seventy thousand, one hundred ninety-one".