135842838 has 16 divisors (see below), whose sum is σ = 271942320. Its totient is φ = 45238176.

The previous prime is 135842821. The next prime is 135842851. The reversal of 135842838 is 838248531.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 135842838.

It is a congruent number.

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, 3433 + ... + 16836.

It is an arithmetic number, because the mean of its divisors is an integer number (16996395).

Almost surely, 2^135842838 is an apocalyptic number.

135842838 is an abundant number, since it is smaller than the sum of its proper divisors (136099482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135842838 is a wasteful number, since it uses less digits than its factorization.

135842838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21391.

The product of its digits is 184320, while the sum is 42.

The square root of 135842838 is about 11655.1635767157. The cubic root of 135842838 is about 514.0581497395.

The spelling of 135842838 in words is "one hundred thirty-five million, eight hundred forty-two thousand, eight hundred thirty-eight".