133223230 has 32 divisors (see below), whose sum is σ = 277539840. Its totient is φ = 45096480.

The previous prime is 133223219. The next prime is 133223243. The reversal of 133223230 is 32322331.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 133223198 and 133223207.

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 15 ways as a sum of consecutive naturals, for example, 6516 + ... + 17575.

It is an arithmetic number, because the mean of its divisors is an integer number (8673120).

Almost surely, 2^133223230 is an apocalyptic number.

133223230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133223230 is an abundant number, since it is smaller than the sum of its proper divisors (144316610).

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

133223230 is a wasteful number, since it uses less digits than its factorization.

133223230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24184.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 133223230 is about 11542.2367849564. The cubic root of 133223230 is about 510.7322941658.

Adding to 133223230 its reverse (32322331), we get a palindrome (165545561).

The spelling of 133223230 in words is "one hundred thirty-three million, two hundred twenty-three thousand, two hundred thirty".