27130091 has 2 divisors, whose sum is σ = 27130092. Its totient is φ = 27130090.

The previous prime is 27130073. The next prime is 27130141. The reversal of 27130091 is 19003172.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27130091 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27130021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13565045 + 13565046.

It is an arithmetic number, because the mean of its divisors is an integer number (13565046).

Almost surely, 2^27130091 is an apocalyptic number.

27130091 is a deficient number, since it is larger than the sum of its proper divisors (1).

27130091 is an equidigital number, since it uses as much as digits as its factorization.

27130091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 27130091 is about 5208.6553927093. The cubic root of 27130091 is about 300.4810467530.

The spelling of 27130091 in words is "twenty-seven million, one hundred thirty thousand, ninety-one".