133207332 has 12 divisors (see below), whose sum is σ = 310817136. Its totient is φ = 44402440.

The previous prime is 133207307. The next prime is 133207343. The reversal of 133207332 is 233702331.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5550294 + ... + 5550317.

It is an arithmetic number, because the mean of its divisors is an integer number (25901428).

Almost surely, 2^133207332 is an apocalyptic number.

133207332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133207332 is an abundant number, since it is smaller than the sum of its proper divisors (177609804).

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

133207332 is a wasteful number, since it uses less digits than its factorization.

133207332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11100618 (or 11100616 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 24.

The square root of 133207332 is about 11541.5480764064. The cubic root of 133207332 is about 510.7119775263.

Adding to 133207332 its reverse (233702331), we get a palindrome (366909663).

The spelling of 133207332 in words is "one hundred thirty-three million, two hundred seven thousand, three hundred thirty-two".