133223112 has 48 divisors (see below), whose sum is σ = 393616080. Its totient is φ = 40370400.

The previous prime is 133223093. The next prime is 133223119. The reversal of 133223112 is 211322331.

It is a Harshad number since it is a multiple of its sum of digits (18).

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

It is not an unprimeable number, because it can be changed into a prime (133223119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83314 + ... + 84897.

It is an arithmetic number, because the mean of its divisors is an integer number (8200335).

Almost surely, 2^133223112 is an apocalyptic number.

133223112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133223112 is an abundant number, since it is smaller than the sum of its proper divisors (260392968).

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

133223112 is a wasteful number, since it uses less digits than its factorization.

133223112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168234 (or 168227 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 133223112 is about 11542.2316732944. The cubic root of 133223112 is about 510.7321433752.

Adding to 133223112 its reverse (211322331), we get a palindrome (344545443).

The spelling of 133223112 in words is "one hundred thirty-three million, two hundred twenty-three thousand, one hundred twelve".