133303450 has 24 divisors (see below), whose sum is σ = 283365792. Its totient is φ = 45703920.

The previous prime is 133303439. The next prime is 133303451. The reversal of 133303450 is 54303331.

It is not an unprimeable number, because it can be changed into a prime (133303451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190084 + ... + 190783.

It is an arithmetic number, because the mean of its divisors is an integer number (11806908).

Almost surely, 2^133303450 is an apocalyptic number.

133303450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133303450 is an abundant number, since it is smaller than the sum of its proper divisors (150062342).

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

133303450 is a wasteful number, since it uses less digits than its factorization.

133303450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380886 (or 380881 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 133303450 is about 11545.7113249899. The cubic root of 133303450 is about 510.8347856103.

Adding to 133303450 its reverse (54303331), we get a palindrome (187606781).

The spelling of 133303450 in words is "one hundred thirty-three million, three hundred three thousand, four hundred fifty".