133223208 has 16 divisors (see below), whose sum is σ = 333058080. Its totient is φ = 44407728.

The previous prime is 133223183. The next prime is 133223219. The reversal of 133223208 is 802322331.

It is a super-2 number, since 2×133223208² = 35496846299622528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 5550967 = 133223208 / (1 + 3 + 3 + 2 + 2 + 3 + 2 + 0 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2775460 + ... + 2775507.

It is an arithmetic number, because the mean of its divisors is an integer number (20816130).

Almost surely, 2^133223208 is an apocalyptic number.

It is an amenable number.

133223208 is an abundant number, since it is smaller than the sum of its proper divisors (199834872).

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

133223208 is a wasteful number, since it uses less digits than its factorization.

133223208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550976 (or 5550972 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 133223208 is about 11542.2358319348. The cubic root of 133223208 is about 510.7322660523.

Adding to 133223208 its reverse (802322331), we get a palindrome (935545539).

The spelling of 133223208 in words is "one hundred thirty-three million, two hundred twenty-three thousand, two hundred eight".