135805538 has 16 divisors (see below), whose sum is σ = 222407424. Its totient is φ = 61679760.

The previous prime is 135805511. The next prime is 135805541. The reversal of 135805538 is 835508531.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47156 + ... + 49952.

It is an arithmetic number, because the mean of its divisors is an integer number (13900464).

Almost surely, 2^135805538 is an apocalyptic number.

135805538 is a deficient number, since it is larger than the sum of its proper divisors (86601886).

135805538 is a wasteful number, since it uses less digits than its factorization.

135805538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5017.

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 135805538 is about 11653.5633177153. The cubic root of 135805538 is about 514.0110950584.

The spelling of 135805538 in words is "one hundred thirty-five million, eight hundred five thousand, five hundred thirty-eight".