133378133 has 8 divisors (see below), whose sum is σ = 152674368. Its totient is φ = 114142464.

The previous prime is 133378129. The next prime is 133378139. The reversal of 133378133 is 331873331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133378133 - 2² = 133378129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133378133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133378139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10316 + ... + 19317.

It is an arithmetic number, because the mean of its divisors is an integer number (19084296).

Almost surely, 2^133378133 is an apocalyptic number.

It is an amenable number.

133378133 is a deficient number, since it is larger than the sum of its proper divisors (19296235).

133378133 is an equidigital number, since it uses as much as digits as its factorization.

133378133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30283.

The product of its digits is 13608, while the sum is 32.

The square root of 133378133 is about 11548.9451033417. The cubic root of 133378133 is about 510.9301658672.

The spelling of 133378133 in words is "one hundred thirty-three million, three hundred seventy-eight thousand, one hundred thirty-three".