451281713 has 2 divisors, whose sum is σ = 451281714. Its totient is φ = 451281712.

The previous prime is 451281667. The next prime is 451281739. The reversal of 451281713 is 317182154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 366033424 + 85248289 = 19132^2 + 9233^2 .

It is a cyclic number.

It is not a de Polignac number, because 451281713 - 2¹⁶ = 451216177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 451281713.

It is not a weakly prime, because it can be changed into another prime (451281763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225640856 + 225640857.

It is an arithmetic number, because the mean of its divisors is an integer number (225640857).

Almost surely, 2^451281713 is an apocalyptic number.

It is an amenable number.

451281713 is a deficient number, since it is larger than the sum of its proper divisors (1).

451281713 is an equidigital number, since it uses as much as digits as its factorization.

451281713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 32.

The square root of 451281713 is about 21243.3922196998. The cubic root of 451281713 is about 767.0362899695.

The spelling of 451281713 in words is "four hundred fifty-one million, two hundred eighty-one thousand, seven hundred thirteen".