450687613 has 2 divisors, whose sum is σ = 450687614. Its totient is φ = 450687612.

The previous prime is 450687571. The next prime is 450687689. The reversal of 450687613 is 316786054.

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., 392119204 + 58568409 = 19802^2 + 7653^2 .

It is a cyclic number.

It is not a de Polignac number, because 450687613 - 2⁹ = 450687101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450687113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225343806 + 225343807.

It is an arithmetic number, because the mean of its divisors is an integer number (225343807).

Almost surely, 2^450687613 is an apocalyptic number.

It is an amenable number.

450687613 is a deficient number, since it is larger than the sum of its proper divisors (1).

450687613 is an equidigital number, since it uses as much as digits as its factorization.

450687613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 450687613 is about 21229.4044428948. The cubic root of 450687613 is about 766.6995480751.

The spelling of 450687613 in words is "four hundred fifty million, six hundred eighty-seven thousand, six hundred thirteen".