135423533 has 32 divisors (see below), whose sum is σ = 167650560. Its totient is φ = 106928640.

The previous prime is 135423523. The next prime is 135423539. The reversal of 135423533 is 335324531.

It is not a de Polignac number, because 135423533 - 2¹⁰ = 135422509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 135423496 and 135423505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135423539) 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 31 ways as a sum of consecutive naturals, for example, 440966 + ... + 441272.

It is an arithmetic number, because the mean of its divisors is an integer number (5239080).

Almost surely, 2^135423533 is an apocalyptic number.

It is an amenable number.

135423533 is a deficient number, since it is larger than the sum of its proper divisors (32227027).

135423533 is a wasteful number, since it uses less digits than its factorization.

135423533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437.

The product of its digits is 16200, while the sum is 29.

The square root of 135423533 is about 11637.1617244069. The cubic root of 135423533 is about 513.5286915493.

The spelling of 135423533 in words is "one hundred thirty-five million, four hundred twenty-three thousand, five hundred thirty-three".