451252133 has 2 divisors, whose sum is σ = 451252134. Its totient is φ = 451252132.

The previous prime is 451252121. The next prime is 451252177. The reversal of 451252133 is 331252154.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 440076484 + 11175649 = 20978^2 + 3343^2 .

It is a cyclic number.

It is not a de Polignac number, because 451252133 - 2⁸ = 451251877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451252103) 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, 225626066 + 225626067.

It is an arithmetic number, because the mean of its divisors is an integer number (225626067).

Almost surely, 2^451252133 is an apocalyptic number.

It is an amenable number.

451252133 is a deficient number, since it is larger than the sum of its proper divisors (1).

451252133 is an equidigital number, since it uses as much as digits as its factorization.

451252133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 26.

The square root of 451252133 is about 21242.6959917992. The cubic root of 451252133 is about 767.0195307195.

The spelling of 451252133 in words is "four hundred fifty-one million, two hundred fifty-two thousand, one hundred thirty-three".