133821292 has 12 divisors (see below), whose sum is σ = 255477096. Its totient is φ = 60827840.

The previous prime is 133821227. The next prime is 133821293. The reversal of 133821292 is 292128331.

133821292 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (133821293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1520653 + ... + 1520740.

It is an arithmetic number, because the mean of its divisors is an integer number (21289758).

Almost surely, 2^133821292 is an apocalyptic number.

It is an amenable number.

133821292 is a deficient number, since it is larger than the sum of its proper divisors (121655804).

133821292 is a wasteful number, since it uses less digits than its factorization.

133821292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3041408 (or 3041406 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 133821292 is about 11568.1153175442. The cubic root of 133821292 is about 511.4954084313.

The spelling of 133821292 in words is "one hundred thirty-three million, eight hundred twenty-one thousand, two hundred ninety-two".