133238196 has 120 divisors (see below), whose sum is σ = 428785280. Its totient is φ = 35131968.

The previous prime is 133238179. The next prime is 133238201. The reversal of 133238196 is 691832331.

It is a super-4 number, since 4×133238196⁴ (a number of 34 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 133238196.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 27225 + ... + 31743.

Almost surely, 2^133238196 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 133238196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214392640).

133238196 is an abundant number, since it is smaller than the sum of its proper divisors (295547084).

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

133238196 is a wasteful number, since it uses less digits than its factorization.

133238196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4555 (or 4544 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 133238196 is about 11542.8850812958. The cubic root of 133238196 is about 510.7514182913.

The spelling of 133238196 in words is "one hundred thirty-three million, two hundred thirty-eight thousand, one hundred ninety-six".