133304535 has 80 divisors (see below), whose sum is σ = 294186816. Its totient is φ = 56236032.

The previous prime is 133304519. The next prime is 133304539. The reversal of 133304535 is 535403331.

It is a happy number.

It is not a de Polignac number, because 133304535 - 2⁴ = 133304519 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 133304499 and 133304508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133304539) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 35047 + ... + 38663.

Almost surely, 2^133304535 is an apocalyptic number.

133304535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133304535 is an abundant number, since it is smaller than the sum of its proper divisors (160882281).

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

133304535 is a wasteful number, since it uses less digits than its factorization.

133304535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3654 (or 3645 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 27.

The square root of 133304535 is about 11545.7583120382. The cubic root of 133304535 is about 510.8361715565.

Adding to 133304535 its reverse (535403331), we get a palindrome (668707866).

The spelling of 133304535 in words is "one hundred thirty-three million, three hundred four thousand, five hundred thirty-five".