133830996 has 48 divisors (see below), whose sum is σ = 343467264. Its totient is φ = 40300416.

The previous prime is 133830979. The next prime is 133831001. The reversal of 133830996 is 699038331.

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, 1795 + ... + 16458.

It is an arithmetic number, because the mean of its divisors is an integer number (7155568).

Almost surely, 2^133830996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133830996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171733632).

133830996 is an abundant number, since it is smaller than the sum of its proper divisors (209636268).

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

133830996 is a wasteful number, since it uses less digits than its factorization.

133830996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18320 (or 18318 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 133830996 is about 11568.5347386780. The cubic root of 133830996 is about 511.5077717640.

The spelling of 133830996 in words is "one hundred thirty-three million, eight hundred thirty thousand, nine hundred ninety-six".