450520243 has 2 divisors, whose sum is σ = 450520244. Its totient is φ = 450520242.

The previous prime is 450520211. The next prime is 450520271. The reversal of 450520243 is 342025054.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 450520243 - 2⁵ = 450520211 is a prime.

It is not a weakly prime, because it can be changed into another prime (450529243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225260121 + 225260122.

It is an arithmetic number, because the mean of its divisors is an integer number (225260122).

Almost surely, 2^450520243 is an apocalyptic number.

450520243 is a deficient number, since it is larger than the sum of its proper divisors (1).

450520243 is an equidigital number, since it uses as much as digits as its factorization.

450520243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 450520243 is about 21225.4621386673. The cubic root of 450520243 is about 766.6046276411.

Adding to 450520243 its reverse (342025054), we get a palindrome (792545297).

The spelling of 450520243 in words is "four hundred fifty million, five hundred twenty thousand, two hundred forty-three".