135816827 has 2 divisors, whose sum is σ = 135816828. Its totient is φ = 135816826.

The previous prime is 135816767. The next prime is 135816829. The reversal of 135816827 is 728618531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135816827 - 2⁶ = 135816763 is a prime.

Together with 135816829, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135816829) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67908413 + 67908414.

It is an arithmetic number, because the mean of its divisors is an integer number (67908414).

Almost surely, 2^135816827 is an apocalyptic number.

135816827 is a deficient number, since it is larger than the sum of its proper divisors (1).

135816827 is an equidigital number, since it uses as much as digits as its factorization.

135816827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 41.

The square root of 135816827 is about 11654.0476659399. The cubic root of 135816827 is about 514.0253372623.

The spelling of 135816827 in words is "one hundred thirty-five million, eight hundred sixteen thousand, eight hundred twenty-seven".