135605027 has 2 divisors, whose sum is σ = 135605028. Its totient is φ = 135605026.

The previous prime is 135605023. The next prime is 135605123. The reversal of 135605027 is 720506531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135605027 - 2² = 135605023 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135605021) 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, 67802513 + 67802514.

It is an arithmetic number, because the mean of its divisors is an integer number (67802514).

Almost surely, 2^135605027 is an apocalyptic number.

135605027 is a deficient number, since it is larger than the sum of its proper divisors (1).

135605027 is an equidigital number, since it uses as much as digits as its factorization.

135605027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 135605027 is about 11644.9571489121. The cubic root of 135605027 is about 513.7579987428.

The spelling of 135605027 in words is "one hundred thirty-five million, six hundred five thousand, twenty-seven".