133404504 has 32 divisors (see below), whose sum is σ = 338493120. Its totient is φ = 43803936.

The previous prime is 133404463. The next prime is 133404511. The reversal of 133404504 is 405404331.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39874 + ... + 43089.

It is an arithmetic number, because the mean of its divisors is an integer number (10577910).

Almost surely, 2^133404504 is an apocalyptic number.

It is an amenable number.

133404504 is an abundant number, since it is smaller than the sum of its proper divisors (205088616).

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

133404504 is a wasteful number, since it uses less digits than its factorization.

133404504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83039 (or 83035 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 133404504 is about 11550.0867529209. The cubic root of 133404504 is about 510.9638366826.

Adding to 133404504 its reverse (405404331), we get a palindrome (538808835).

The spelling of 133404504 in words is "one hundred thirty-three million, four hundred four thousand, five hundred four".