450161791 has 2 divisors, whose sum is σ = 450161792. Its totient is φ = 450161790.

The previous prime is 450161783. The next prime is 450161801. The reversal of 450161791 is 197161054.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 450161791 - 2³ = 450161783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450161741) 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, 225080895 + 225080896.

It is an arithmetic number, because the mean of its divisors is an integer number (225080896).

Almost surely, 2^450161791 is an apocalyptic number.

450161791 is a deficient number, since it is larger than the sum of its proper divisors (1).

450161791 is an equidigital number, since it uses as much as digits as its factorization.

450161791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 450161791 is about 21217.0165433314. The cubic root of 450161791 is about 766.4012598852.

The spelling of 450161791 in words is "four hundred fifty million, one hundred sixty-one thousand, seven hundred ninety-one".