27000109 has 2 divisors, whose sum is σ = 27000110. Its totient is φ = 27000108.

The previous prime is 27000089. The next prime is 27000119. The reversal of 27000109 is 90100072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26936100 + 64009 = 5190^2 + 253^2 .

It is a cyclic number.

It is not a de Polignac number, because 27000109 - 2⁷ = 26999981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27000119) 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, 13500054 + 13500055.

It is an arithmetic number, because the mean of its divisors is an integer number (13500055).

Almost surely, 2^27000109 is an apocalyptic number.

It is an amenable number.

27000109 is a deficient number, since it is larger than the sum of its proper divisors (1).

27000109 is an equidigital number, since it uses as much as digits as its factorization.

27000109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 27000109 is about 5196.1629112259. The cubic root of 27000109 is about 300.0004037032. Note that the first 3 decimals are identical.

The spelling of 27000109 in words is "twenty-seven million, one hundred nine", and thus it is an aban number.