133243332 has 24 divisors (see below), whose sum is σ = 320931072. Its totient is φ = 42981600.

The previous prime is 133243309. The next prime is 133243351. The reversal of 133243332 is 233342331.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

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 7 ways as a sum of consecutive naturals, for example, 178719 + ... + 179462.

It is an arithmetic number, because the mean of its divisors is an integer number (13372128).

Almost surely, 2^133243332 is an apocalyptic number.

133243332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133243332 is an abundant number, since it is smaller than the sum of its proper divisors (187687740).

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

133243332 is a wasteful number, since it uses less digits than its factorization.

133243332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358219 (or 358217 counting only the distinct ones).

The product of its digits is 3888, while the sum is 24.

The square root of 133243332 is about 11543.1075538609. The cubic root of 133243332 is about 510.7579809379.

Adding to 133243332 its reverse (233342331), we get a palindrome (366585663).

The spelling of 133243332 in words is "one hundred thirty-three million, two hundred forty-three thousand, three hundred thirty-two".