451352521 has 2 divisors, whose sum is σ = 451352522. Its totient is φ = 451352520.

The previous prime is 451352459. The next prime is 451352527. The reversal of 451352521 is 125253154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 378847296 + 72505225 = 19464^2 + 8515^2 .

It is a cyclic number.

It is not a de Polignac number, because 451352521 - 2⁷ = 451352393 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 451352521.

It is not a weakly prime, because it can be changed into another prime (451352527) 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, 225676260 + 225676261.

It is an arithmetic number, because the mean of its divisors is an integer number (225676261).

Almost surely, 2^451352521 is an apocalyptic number.

It is an amenable number.

451352521 is a deficient number, since it is larger than the sum of its proper divisors (1).

451352521 is an equidigital number, since it uses as much as digits as its factorization.

451352521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6000, while the sum is 28.

The square root of 451352521 is about 21245.0587431525. The cubic root of 451352521 is about 767.0764049455.

The spelling of 451352521 in words is "four hundred fifty-one million, three hundred fifty-two thousand, five hundred twenty-one".