133801472 has 80 divisors (see below), whose sum is σ = 314101920. Its totient is φ = 55738368.

The previous prime is 133801471. The next prime is 133801483. The reversal of 133801472 is 274108331.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133801471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132104 + ... + 133112.

It is an arithmetic number, because the mean of its divisors is an integer number (3926274).

Almost surely, 2^133801472 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 133801472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157050960).

133801472 is an abundant number, since it is smaller than the sum of its proper divisors (180300448).

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

133801472 is an equidigital number, since it uses as much as digits as its factorization.

133801472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071 (or 1055 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 133801472 is about 11567.2586207796. The cubic root of 133801472 is about 511.4701550022.

The spelling of 133801472 in words is "one hundred thirty-three million, eight hundred one thousand, four hundred seventy-two".