133223330 has 16 divisors (see below), whose sum is σ = 240356160. Its totient is φ = 53166192.

The previous prime is 133223317. The next prime is 133223341. The reversal of 133223330 is 33322331.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10784 + ... + 19563.

It is an arithmetic number, because the mean of its divisors is an integer number (15022260).

Almost surely, 2^133223330 is an apocalyptic number.

133223330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133223330 is a deficient number, since it is larger than the sum of its proper divisors (107132830).

133223330 is a wasteful number, since it uses less digits than its factorization.

133223330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30793.

The product of its (nonzero) digits is 972, while the sum is 20.

The square root of 133223330 is about 11542.2411168715. The cubic root of 133223330 is about 510.7324219543.

Adding to 133223330 its reverse (33322331), we get a palindrome (166545661).

Subtracting from 133223330 its reverse (33322331), we obtain a palindrome (99900999).

The spelling of 133223330 in words is "one hundred thirty-three million, two hundred twenty-three thousand, three hundred thirty".