133133450 has 12 divisors (see below), whose sum is σ = 247628310. Its totient is φ = 53253360.

The previous prime is 133133447. The next prime is 133133459. The reversal of 133133450 is 54331331.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 110103049 + 23030401 = 10493^2 + 4799^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133133459) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1331285 + ... + 1331384.

Almost surely, 2^133133450 is an apocalyptic number.

133133450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133133450 is a deficient number, since it is larger than the sum of its proper divisors (114494860).

133133450 is a wasteful number, since it uses less digits than its factorization.

133133450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662681 (or 2662676 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 133133450 is about 11538.3469353283. The cubic root of 133133450 is about 510.6175397806.

Adding to 133133450 its reverse (54331331), we get a palindrome (187464781).

The spelling of 133133450 in words is "one hundred thirty-three million, one hundred thirty-three thousand, four hundred fifty".