133333230 has 32 divisors (see below), whose sum is σ = 327807648. Its totient is φ = 34688000.

The previous prime is 133333229. The next prime is 133333253. The reversal of 133333230 is 32333331.

It is a junction number, because it is equal to n+sod(n) for n = 133333197 and 133333206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52971 + ... + 55430.

It is an arithmetic number, because the mean of its divisors is an integer number (10243989).

Almost surely, 2^133333230 is an apocalyptic number.

133333230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133333230 is an abundant number, since it is smaller than the sum of its proper divisors (194474418).

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

133333230 is a wasteful number, since it uses less digits than its factorization.

133333230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108452.

The product of its (nonzero) digits is 1458, while the sum is 21.

The square root of 133333230 is about 11547.0009093271. Note that the first 3 decimals coincide. The cubic root of 133333230 is about 510.8728229535.

Subtracting from 133333230 its sum of digits (21), we obtain a square (133333209 = 11547²).

Adding to 133333230 its reverse (32333331), we get a palindrome (165666561).

The spelling of 133333230 in words is "one hundred thirty-three million, three hundred thirty-three thousand, two hundred thirty".