133071888 has 20 divisors (see below), whose sum is σ = 343769168. Its totient is φ = 44357280.

The previous prime is 133071881. The next prime is 133071889. The reversal of 133071888 is 888170331.

It is not an unprimeable number, because it can be changed into a prime (133071881) 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, 1386118 + ... + 1386213.

Almost surely, 2^133071888 is an apocalyptic number.

It is an amenable number.

133071888 is an abundant number, since it is smaller than the sum of its proper divisors (210697280).

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

133071888 is a wasteful number, since it uses less digits than its factorization.

133071888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2772342 (or 2772336 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 133071888 is about 11535.6789137007. The cubic root of 133071888 is about 510.5388230658.

The spelling of 133071888 in words is "one hundred thirty-three million, seventy-one thousand, eight hundred eighty-eight".