133303040 has 72 divisors (see below), whose sum is σ = 343907088. Its totient is φ = 49213440.

The previous prime is 133303039. The next prime is 133303057. The reversal of 133303040 is 40303331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12635 + ... + 20645.

Almost surely, 2^133303040 is an apocalyptic number.

133303040 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 133303040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171953544).

133303040 is an abundant number, since it is smaller than the sum of its proper divisors (210604048).

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

133303040 is an equidigital number, since it uses as much as digits as its factorization.

133303040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8045 (or 8031 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 133303040 is about 11545.6935694656. The cubic root of 133303040 is about 510.8342618867.

Adding to 133303040 its reverse (40303331), we get a palindrome (173606371).

The spelling of 133303040 in words is "one hundred thirty-three million, three hundred three thousand, forty".