133902108 has 36 divisors (see below), whose sum is σ = 338899288. Its totient is φ = 44578080.

The previous prime is 133902091. The next prime is 133902143. The reversal of 133902108 is 801209331.

133902108 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34935 + ... + 38577.

Almost surely, 2^133902108 is an apocalyptic number.

133902108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

133902108 is an abundant number, since it is smaller than the sum of its proper divisors (204997180).

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

133902108 is a wasteful number, since it uses less digits than its factorization.

133902108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4674 (or 4669 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 133902108 is about 11571.6078398812. The cubic root of 133902108 is about 511.5983534207.

The spelling of 133902108 in words is "one hundred thirty-three million, nine hundred two thousand, one hundred eight".