133955208 has 112 divisors (see below), whose sum is σ = 381937920. Its totient is φ = 44019936.

The previous prime is 133955201. The next prime is 133955233. The reversal of 133955208 is 802559331.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (133955201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 600585 + ... + 600807.

It is an arithmetic number, because the mean of its divisors is an integer number (3410160).

Almost surely, 2^133955208 is an apocalyptic number.

133955208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133955208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190968960).

133955208 is an abundant number, since it is smaller than the sum of its proper divisors (247982712).

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

133955208 is a wasteful number, since it uses less digits than its factorization.

133955208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 133955208 is about 11573.9020213582. The cubic root of 133955208 is about 511.6659706843.

The spelling of 133955208 in words is "one hundred thirty-three million, nine hundred fifty-five thousand, two hundred eight".