133518996 has 96 divisors (see below), whose sum is σ = 379142400. Its totient is φ = 40383360.

The previous prime is 133518989. The next prime is 133518997. The reversal of 133518996 is 699815331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133518997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84865 + ... + 86423.

It is an arithmetic number, because the mean of its divisors is an integer number (3949400).

Almost surely, 2^133518996 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 133518996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189571200).

133518996 is an abundant number, since it is smaller than the sum of its proper divisors (245623404).

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

133518996 is a wasteful number, since it uses less digits than its factorization.

133518996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646 (or 1638 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 133518996 is about 11555.0420163667. The cubic root of 133518996 is about 511.1099700388.

The spelling of 133518996 in words is "one hundred thirty-three million, five hundred eighteen thousand, nine hundred ninety-six".