275996191 has 2 divisors, whose sum is σ = 275996192. Its totient is φ = 275996190.

The previous prime is 275996183. The next prime is 275996213. The reversal of 275996191 is 191699572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 275996191 - 2³ = 275996183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275996101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137998095 + 137998096.

It is an arithmetic number, because the mean of its divisors is an integer number (137998096).

Almost surely, 2^275996191 is an apocalyptic number.

275996191 is a deficient number, since it is larger than the sum of its proper divisors (1).

275996191 is an equidigital number, since it uses as much as digits as its factorization.

275996191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 306180, while the sum is 49.

The square root of 275996191 is about 16613.1330880120. The cubic root of 275996191 is about 651.0800119998.

The spelling of 275996191 in words is "two hundred seventy-five million, nine hundred ninety-six thousand, one hundred ninety-one".