27085139 has 2 divisors, whose sum is σ = 27085140. Its totient is φ = 27085138.

The previous prime is 27085111. The next prime is 27085181. The reversal of 27085139 is 93158072.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27085139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27085099 and 27085108.

It is not a weakly prime, because it can be changed into another prime (27085039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13542569 + 13542570.

It is an arithmetic number, because the mean of its divisors is an integer number (13542570).

Almost surely, 2^27085139 is an apocalyptic number.

27085139 is a deficient number, since it is larger than the sum of its proper divisors (1).

27085139 is an equidigital number, since it uses as much as digits as its factorization.

27085139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 27085139 is about 5204.3384786157. The cubic root of 27085139 is about 300.3149987665.

The spelling of 27085139 in words is "twenty-seven million, eighty-five thousand, one hundred thirty-nine".