133221334 has 8 divisors (see below), whose sum is σ = 202361760. Its totient is φ = 65767416.

The previous prime is 133221317. The next prime is 133221343. The reversal of 133221334 is 433122331.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 421429 + ... + 421744.

It is an arithmetic number, because the mean of its divisors is an integer number (25295220).

Almost surely, 2^133221334 is an apocalyptic number.

133221334 is a deficient number, since it is larger than the sum of its proper divisors (69140426).

133221334 is an equidigital number, since it uses as much as digits as its factorization.

133221334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843254.

The product of its digits is 1296, while the sum is 22.

The square root of 133221334 is about 11542.1546515371. The cubic root of 133221334 is about 510.7298712824.

Adding to 133221334 its reverse (433122331), we get a palindrome (566343665).

The spelling of 133221334 in words is "one hundred thirty-three million, two hundred twenty-one thousand, three hundred thirty-four".