133891302 has 8 divisors (see below), whose sum is σ = 267782616. Its totient is φ = 44630432.

The previous prime is 133891283. The next prime is 133891319. The reversal of 133891302 is 203198331.

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

133891302 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 133891302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11157603 + ... + 11157614.

It is an arithmetic number, because the mean of its divisors is an integer number (33472827).

Almost surely, 2^133891302 is an apocalyptic number.

133891302 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

133891302 is a wasteful number, since it uses less digits than its factorization.

133891302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22315222.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 133891302 is about 11571.1409117684. The cubic root of 133891302 is about 511.5845909275.

The spelling of 133891302 in words is "one hundred thirty-three million, eight hundred ninety-one thousand, three hundred two".