133673120 has 144 divisors (see below), whose sum is σ = 375145344. Its totient is φ = 44083200.

The previous prime is 133673117. The next prime is 133673149. The reversal of 133673120 is 21376331.

It is a self number, because there is not a number n which added to its sum of digits gives 133673120.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1882685 + ... + 1882755.

It is an arithmetic number, because the mean of its divisors is an integer number (2605176).

Almost surely, 2^133673120 is an apocalyptic number.

133673120 is a gapful number since it is divisible by the number (10) 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 133673120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187572672).

133673120 is an abundant number, since it is smaller than the sum of its proper divisors (241472224).

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

133673120 is an equidigital number, since it uses as much as digits as its factorization.

133673120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 133673120 is about 11561.7092162016. The cubic root of 133673120 is about 511.3065563535.

The spelling of 133673120 in words is "one hundred thirty-three million, six hundred seventy-three thousand, one hundred twenty".