133948908 has 36 divisors (see below), whose sum is σ = 339011400. Its totient is φ = 44594496.

The previous prime is 133948897. The next prime is 133948909. The reversal of 133948908 is 809849331.

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

It is not an unprimeable number, because it can be changed into a prime (133948909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35991 + ... + 39537.

Almost surely, 2^133948908 is an apocalyptic number.

133948908 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

133948908 is an abundant number, since it is smaller than the sum of its proper divisors (205062492).

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

133948908 is a wasteful number, since it uses less digits than its factorization.

133948908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4606 (or 4601 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 133948908 is about 11573.6298541123. The cubic root of 133948908 is about 511.6579492314.

The spelling of 133948908 in words is "one hundred thirty-three million, nine hundred forty-eight thousand, nine hundred eight".