135235523 has 2 divisors, whose sum is σ = 135235524. Its totient is φ = 135235522.

The previous prime is 135235519. The next prime is 135235543. The reversal of 135235523 is 325532531.

It is a weak prime.

It is an emirp because it is prime and its reverse (325532531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135235523 - 2² = 135235519 is a prime.

It is not a weakly prime, because it can be changed into another prime (135235543) 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, 67617761 + 67617762.

It is an arithmetic number, because the mean of its divisors is an integer number (67617762).

Almost surely, 2^135235523 is an apocalyptic number.

135235523 is a deficient number, since it is larger than the sum of its proper divisors (1).

135235523 is an equidigital number, since it uses as much as digits as its factorization.

135235523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13500, while the sum is 29.

The square root of 135235523 is about 11629.0809181121. The cubic root of 135235523 is about 513.2909356205.

The spelling of 135235523 in words is "one hundred thirty-five million, two hundred thirty-five thousand, five hundred twenty-three".