450111481 has 2 divisors, whose sum is σ = 450111482. Its totient is φ = 450111480.

The previous prime is 450111437. The next prime is 450111491. The reversal of 450111481 is 184111054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 365765625 + 84345856 = 19125^2 + 9184^2 .

It is a cyclic number.

It is not a de Polignac number, because 450111481 - 2¹¹ = 450109433 is a prime.

It is a super-2 number, since 2×450111481² = 405200690656026722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (450111491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225055740 + 225055741.

It is an arithmetic number, because the mean of its divisors is an integer number (225055741).

Almost surely, 2^450111481 is an apocalyptic number.

It is an amenable number.

450111481 is a deficient number, since it is larger than the sum of its proper divisors (1).

450111481 is an equidigital number, since it uses as much as digits as its factorization.

450111481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 450111481 is about 21215.8309052462. The cubic root of 450111481 is about 766.3727078663.

The spelling of 450111481 in words is "four hundred fifty million, one hundred eleven thousand, four hundred eighty-one".