450988913 has 2 divisors, whose sum is σ = 450988914. Its totient is φ = 450988912.

The previous prime is 450988891. The next prime is 450988931. The reversal of 450988913 is 319889054.

Together with next prime (450988931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 349241344 + 101747569 = 18688^2 + 10087^2 .

It is a cyclic number.

It is not a de Polignac number, because 450988913 - 2⁶ = 450988849 is a prime.

It is not a weakly prime, because it can be changed into another prime (450981913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225494456 + 225494457.

It is an arithmetic number, because the mean of its divisors is an integer number (225494457).

Almost surely, 2^450988913 is an apocalyptic number.

It is an amenable number.

450988913 is a deficient number, since it is larger than the sum of its proper divisors (1).

450988913 is an equidigital number, since it uses as much as digits as its factorization.

450988913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 450988913 is about 21236.4995467709. The cubic root of 450988913 is about 766.8703649245.

The spelling of 450988913 in words is "four hundred fifty million, nine hundred eighty-eight thousand, nine hundred thirteen".