133104328 has 32 divisors (see below), whose sum is σ = 294428160. Its totient is φ = 55203840.

The previous prime is 133104319. The next prime is 133104341. The reversal of 133104328 is 823401331.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36601 + ... + 40072.

It is an arithmetic number, because the mean of its divisors is an integer number (9200880).

Almost surely, 2^133104328 is an apocalyptic number.

It is an amenable number.

133104328 is an abundant number, since it is smaller than the sum of its proper divisors (161323832).

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

133104328 is a wasteful number, since it uses less digits than its factorization.

133104328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76717 (or 76713 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 133104328 is about 11537.0849004417. The cubic root of 133104328 is about 510.5803057411.

Adding to 133104328 its reverse (823401331), we get a palindrome (956505659).

The spelling of 133104328 in words is "one hundred thirty-three million, one hundred four thousand, three hundred twenty-eight".