133230642 has 8 divisors (see below), whose sum is σ = 266461296. Its totient is φ = 44410212.

The previous prime is 133230637. The next prime is 133230659. The reversal of 133230642 is 246032331.

It is a sphenic number, since it is the product of 3 distinct primes.

133230642 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 11102548 + ... + 11102559.

It is an arithmetic number, because the mean of its divisors is an integer number (33307662).

Almost surely, 2^133230642 is an apocalyptic number.

133230642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

133230642 is a wasteful number, since it uses less digits than its factorization.

133230642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22205112.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 133230642 is about 11542.5578621032. The cubic root of 133230642 is about 510.7417656810.

Adding to 133230642 its reverse (246032331), we get a palindrome (379262973).

The spelling of 133230642 in words is "one hundred thirty-three million, two hundred thirty thousand, six hundred forty-two".