133935872 has 72 divisors (see below), whose sum is σ = 315528192. Its totient is φ = 55526400.

The previous prime is 133935869. The next prime is 133935887. The reversal of 133935872 is 278539331.

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, 54347 + ... + 56757.

It is an arithmetic number, because the mean of its divisors is an integer number (4382336).

Almost surely, 2^133935872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133935872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157764096).

133935872 is an abundant number, since it is smaller than the sum of its proper divisors (181592320).

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

133935872 is an equidigital number, since it uses as much as digits as its factorization.

133935872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2465 (or 2451 counting only the distinct ones).

The product of its digits is 136080, while the sum is 41.

The square root of 133935872 is about 11573.0666635944. The cubic root of 133935872 is about 511.6413503916.

The spelling of 133935872 in words is "one hundred thirty-three million, nine hundred thirty-five thousand, eight hundred seventy-two".