451530133 has 2 divisors, whose sum is σ = 451530134. Its totient is φ = 451530132.

The previous prime is 451530077. The next prime is 451530137. The reversal of 451530133 is 331035154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304223364 + 147306769 = 17442^2 + 12137^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-451530133 is a prime.

It is a super-3 number, since 3×451530133³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 451530098 and 451530107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451530137) 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 as a sum of consecutive naturals, namely, 225765066 + 225765067.

It is an arithmetic number, because the mean of its divisors is an integer number (225765067).

Almost surely, 2^451530133 is an apocalyptic number.

It is an amenable number.

451530133 is a deficient number, since it is larger than the sum of its proper divisors (1).

451530133 is an equidigital number, since it uses as much as digits as its factorization.

451530133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 451530133 is about 21249.2384098819. The cubic root of 451530133 is about 767.1770093151.

Adding to 451530133 its reverse (331035154), we get a palindrome (782565287).

The spelling of 451530133 in words is "four hundred fifty-one million, five hundred thirty thousand, one hundred thirty-three".