27135109 has 2 divisors, whose sum is σ = 27135110. Its totient is φ = 27135108.

The previous prime is 27135083. The next prime is 27135127. The reversal of 27135109 is 90153172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16990884 + 10144225 = 4122^2 + 3185^2 .

It is a cyclic number.

It is not a de Polignac number, because 27135109 - 2¹¹ = 27133061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27135139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13567554 + 13567555.

It is an arithmetic number, because the mean of its divisors is an integer number (13567555).

Almost surely, 2^27135109 is an apocalyptic number.

It is an amenable number.

27135109 is a deficient number, since it is larger than the sum of its proper divisors (1).

27135109 is an equidigital number, since it uses as much as digits as its factorization.

27135109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 27135109 is about 5209.1370686516. The cubic root of 27135109 is about 300.4995713369.

The spelling of 27135109 in words is "twenty-seven million, one hundred thirty-five thousand, one hundred nine".