133189396 has 12 divisors (see below), whose sum is σ = 233245152. Its totient is φ = 66547928.

The previous prime is 133189391. The next prime is 133189417. The reversal of 133189396 is 693981331.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133189391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4840 + ... + 17023.

It is an arithmetic number, because the mean of its divisors is an integer number (19437096).

Almost surely, 2^133189396 is an apocalyptic number.

It is an amenable number.

133189396 is a deficient number, since it is larger than the sum of its proper divisors (100055756).

133189396 is a wasteful number, since it uses less digits than its factorization.

133189396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23390 (or 23388 counting only the distinct ones).

The product of its digits is 104976, while the sum is 43.

The square root of 133189396 is about 11540.7710314346. The cubic root of 133189396 is about 510.6890545108.

The spelling of 133189396 in words is "one hundred thirty-three million, one hundred eighty-nine thousand, three hundred ninety-six".