133750240 has 48 divisors (see below), whose sum is σ = 340296768. Its totient is φ = 49383936.

The previous prime is 133750231. The next prime is 133750261. The reversal of 133750240 is 42057331.

133750240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30072 + ... + 34231.

It is an arithmetic number, because the mean of its divisors is an integer number (7089516).

Almost surely, 2^133750240 is an apocalyptic number.

133750240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133750240 is an abundant number, since it is smaller than the sum of its proper divisors (206546528).

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

133750240 is a wasteful number, since it uses less digits than its factorization.

133750240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64331 (or 64323 counting only the distinct ones).

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

The square root of 133750240 is about 11565.0438823206. The cubic root of 133750240 is about 511.4048667715.

The spelling of 133750240 in words is "one hundred thirty-three million, seven hundred fifty thousand, two hundred forty".