133013222 has 4 divisors (see below), whose sum is σ = 199519836. Its totient is φ = 66506610.

The previous prime is 133013213. The next prime is 133013249. The reversal of 133013222 is 222310331.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 133013222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33253304 + ... + 33253307.

It is an arithmetic number, because the mean of its divisors is an integer number (49879959).

Almost surely, 2^133013222 is an apocalyptic number.

133013222 is a deficient number, since it is larger than the sum of its proper divisors (66506614).

133013222 is an equidigital number, since it uses as much as digits as its factorization.

133013222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66506613.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 133013222 is about 11533.1358268252. The cubic root of 133013222 is about 510.4637867488.

Adding to 133013222 its reverse (222310331), we get a palindrome (355323553).

The spelling of 133013222 in words is "one hundred thirty-three million, thirteen thousand, two hundred twenty-two".