133833996 has 72 divisors (see below), whose sum is σ = 359770320. Its totient is φ = 41803776.

The previous prime is 133833991. The next prime is 133834003. The reversal of 133833996 is 699338331.

It is not an unprimeable number, because it can be changed into a prime (133833991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 231660 + ... + 232236.

It is an arithmetic number, because the mean of its divisors is an integer number (4996810).

Almost surely, 2^133833996 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 133833996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179885160).

133833996 is an abundant number, since it is smaller than the sum of its proper divisors (225936324).

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

133833996 is a wasteful number, since it uses less digits than its factorization.

133833996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983 (or 978 counting only the distinct ones).

The product of its digits is 314928, while the sum is 45.

The square root of 133833996 is about 11568.6644000075. The cubic root of 133833996 is about 511.5115937781.

The spelling of 133833996 in words is "one hundred thirty-three million, eight hundred thirty-three thousand, nine hundred ninety-six".