135236505 has 16 divisors (see below), whose sum is σ = 221411520. Its totient is φ = 70448448.

The previous prime is 135236489. The next prime is 135236533. The reversal of 135236505 is 505632531.

It is not a de Polignac number, because 135236505 - 2⁴ = 135236489 is a prime.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 104190 + ... + 105479.

It is an arithmetic number, because the mean of its divisors is an integer number (13838220).

Almost surely, 2^135236505 is an apocalyptic number.

135236505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135236505 is a deficient number, since it is larger than the sum of its proper divisors (86175015).

135236505 is a wasteful number, since it uses less digits than its factorization.

135236505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209720.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 135236505 is about 11629.1231397728. The cubic root of 135236505 is about 513.2921780221.

The spelling of 135236505 in words is "one hundred thirty-five million, two hundred thirty-six thousand, five hundred five".