133871308 has 24 divisors (see below), whose sum is σ = 245095200. Its totient is φ = 63896448.

The previous prime is 133871261. The next prime is 133871323. The reversal of 133871308 is 803178331.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3841 + ... + 16807.

It is an arithmetic number, because the mean of its divisors is an integer number (10212300).

Almost surely, 2^133871308 is an apocalyptic number.

It is an amenable number.

133871308 is a deficient number, since it is larger than the sum of its proper divisors (111223892).

133871308 is a wasteful number, since it uses less digits than its factorization.

133871308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13089 (or 13087 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 133871308 is about 11570.2769197630. The cubic root of 133871308 is about 511.5591246691.

The spelling of 133871308 in words is "one hundred thirty-three million, eight hundred seventy-one thousand, three hundred eight".