133879868 has 12 divisors (see below), whose sum is σ = 234633672. Its totient is φ = 66841680.

The previous prime is 133879859. The next prime is 133879873. The reversal of 133879868 is 868978331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21455 + ... + 26982.

It is an arithmetic number, because the mean of its divisors is an integer number (19552806).

Almost surely, 2^133879868 is an apocalyptic number.

It is an amenable number.

133879868 is a deficient number, since it is larger than the sum of its proper divisors (100753804).

133879868 is a wasteful number, since it uses less digits than its factorization.

133879868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49132 (or 49130 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 53.

The square root of 133879868 is about 11570.6468272089. The cubic root of 133879868 is about 511.5700278089.

The spelling of 133879868 in words is "one hundred thirty-three million, eight hundred seventy-nine thousand, eight hundred sixty-eight".