133835538 has 16 divisors (see below), whose sum is σ = 268045056. Its totient is φ = 44549520.

The previous prime is 133835519. The next prime is 133835539. The reversal of 133835538 is 835538331.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 133835496 and 133835505.

It is not an unprimeable number, because it can be changed into a prime (133835539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10818 + ... + 19613.

It is an arithmetic number, because the mean of its divisors is an integer number (16752816).

Almost surely, 2^133835538 is an apocalyptic number.

133835538 is an abundant number, since it is smaller than the sum of its proper divisors (134209518).

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

133835538 is a wasteful number, since it uses less digits than its factorization.

133835538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31169.

The product of its digits is 129600, while the sum is 39.

The square root of 133835538 is about 11568.7310453653. The cubic root of 133835538 is about 511.5135582711.

The spelling of 133835538 in words is "one hundred thirty-three million, eight hundred thirty-five thousand, five hundred thirty-eight".