133423535 has 16 divisors (see below), whose sum is σ = 188884992. Its totient is φ = 88538400.

The previous prime is 133423513. The next prime is 133423541. The reversal of 133423535 is 535324331.

It is not a de Polignac number, because 133423535 - 2²⁴ = 116646319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133423498 and 133423507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60401 + ... + 62570.

It is an arithmetic number, because the mean of its divisors is an integer number (11805312).

Almost surely, 2^133423535 is an apocalyptic number.

133423535 is a deficient number, since it is larger than the sum of its proper divisors (55461457).

133423535 is a wasteful number, since it uses less digits than its factorization.

133423535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123014.

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

The square root of 133423535 is about 11550.9105701672. The cubic root of 133423535 is about 510.9881329398.

Adding to 133423535 its reverse (535324331), we get a palindrome (668747866).

The spelling of 133423535 in words is "one hundred thirty-three million, four hundred twenty-three thousand, five hundred thirty-five".