135833520 has 40 divisors (see below), whose sum is σ = 421084656. Its totient is φ = 36222208.

The previous prime is 135833501. The next prime is 135833521. The reversal of 135833520 is 25338531.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (135833521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282747 + ... + 283226.

Almost surely, 2^135833520 is an apocalyptic number.

135833520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135833520 is an abundant number, since it is smaller than the sum of its proper divisors (285251136).

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

135833520 is a wasteful number, since it uses less digits than its factorization.

135833520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565989 (or 565983 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 135833520 is about 11654.7638328711. The cubic root of 135833520 is about 514.0463957070.

The spelling of 135833520 in words is "one hundred thirty-five million, eight hundred thirty-three thousand, five hundred twenty".