135181727 has 2 divisors, whose sum is σ = 135181728. Its totient is φ = 135181726.

The previous prime is 135181687. The next prime is 135181759. The reversal of 135181727 is 727181531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135181727 - 2⁶ = 135181663 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135181027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67590863 + 67590864.

It is an arithmetic number, because the mean of its divisors is an integer number (67590864).

Almost surely, 2^135181727 is an apocalyptic number.

135181727 is a deficient number, since it is larger than the sum of its proper divisors (1).

135181727 is an equidigital number, since it uses as much as digits as its factorization.

135181727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 35.

The square root of 135181727 is about 11626.7676935595. The cubic root of 135181727 is about 513.2228650900. Note that the first 3 decimals are identical.

The spelling of 135181727 in words is "one hundred thirty-five million, one hundred eighty-one thousand, seven hundred twenty-seven".