133570240 has 112 divisors (see below), whose sum is σ = 331817472. Its totient is φ = 51178496.

The previous prime is 133570237. The next prime is 133570291. The reversal of 133570240 is 42075331.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1248267 + ... + 1248373.

It is an arithmetic number, because the mean of its divisors is an integer number (2962656).

Almost surely, 2^133570240 is an apocalyptic number.

133570240 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 133570240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165908736).

133570240 is an abundant number, since it is smaller than the sum of its proper divisors (198247232).

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

133570240 is a wasteful number, since it uses less digits than its factorization.

133570240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 133570240 is about 11557.2591906559. The cubic root of 133570240 is about 511.1753489239.

The spelling of 133570240 in words is "one hundred thirty-three million, five hundred seventy thousand, two hundred forty".