133532308 has 36 divisors (see below), whose sum is σ = 289198560. Its totient is φ = 52824096.

The previous prime is 133532291. The next prime is 133532341. The reversal of 133532308 is 803235331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9378 + ... + 18841.

Almost surely, 2^133532308 is an apocalyptic number.

It is an amenable number.

133532308 is an abundant number, since it is smaller than the sum of its proper divisors (155666252).

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

133532308 is a wasteful number, since it uses less digits than its factorization.

133532308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28256 (or 28241 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 133532308 is about 11555.6180276089. The cubic root of 133532308 is about 511.1269555615.

Adding to 133532308 its reverse (803235331), we get a palindrome (936767639).

The spelling of 133532308 in words is "one hundred thirty-three million, five hundred thirty-two thousand, three hundred eight".