450000409513 has 2 divisors, whose sum is σ = 450000409514. Its totient is φ = 450000409512.

The previous prime is 450000409511. The next prime is 450000409549. The reversal of 450000409513 is 315904000054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 399338052624 + 50662356889 = 631932^2 + 225083^2 .

It is a cyclic number.

It is not a de Polignac number, because 450000409513 - 2¹ = 450000409511 is a prime.

Together with 450000409511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (450000409511) 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, 225000204756 + 225000204757.

It is an arithmetic number, because the mean of its divisors is an integer number (225000204757).

Almost surely, 2^450000409513 is an apocalyptic number.

It is an amenable number.

450000409513 is a deficient number, since it is larger than the sum of its proper divisors (1).

450000409513 is an equidigital number, since it uses as much as digits as its factorization.

450000409513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 450000409513 its reverse (315904000054), we get a palindrome (765904409567).

The spelling of 450000409513 in words is "four hundred fifty billion, four hundred nine thousand, five hundred thirteen".