133230224 has 20 divisors (see below), whose sum is σ = 273318444. Its totient is φ = 62696448.

The previous prime is 133230221. The next prime is 133230233. The reversal of 133230224 is 422032331.

It can be written as a sum of positive squares in 2 ways, for example, as 47334400 + 85895824 = 6880^2 + 9268^2 .

It is a junction number, because it is equal to n+sod(n) for n = 133230196 and 133230205.

It is not an unprimeable number, because it can be changed into a prime (133230221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244637 + ... + 245180.

Almost surely, 2^133230224 is an apocalyptic number.

It is an amenable number.

133230224 is an abundant number, since it is smaller than the sum of its proper divisors (140088220).

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

133230224 is a wasteful number, since it uses less digits than its factorization.

133230224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489842 (or 489836 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 133230224 is about 11542.5397551839. The cubic root of 133230224 is about 510.7412315439.

Adding to 133230224 its reverse (422032331), we get a palindrome (555262555).

The spelling of 133230224 in words is "one hundred thirty-three million, two hundred thirty thousand, two hundred twenty-four".