450554161 has 2 divisors, whose sum is σ = 450554162. Its totient is φ = 450554160.

The previous prime is 450554141. The next prime is 450554171. The reversal of 450554161 is 161455054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 438693025 + 11861136 = 20945^2 + 3444^2 .

It is a cyclic number.

It is not a de Polignac number, because 450554161 - 2²³ = 442165553 is a prime.

It is not a weakly prime, because it can be changed into another prime (450554101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225277080 + 225277081.

It is an arithmetic number, because the mean of its divisors is an integer number (225277081).

Almost surely, 2^450554161 is an apocalyptic number.

It is an amenable number.

450554161 is a deficient number, since it is larger than the sum of its proper divisors (1).

450554161 is an equidigital number, since it uses as much as digits as its factorization.

450554161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 450554161 is about 21226.2611168336. The cubic root of 450554161 is about 766.6238654324.

The spelling of 450554161 in words is "four hundred fifty million, five hundred fifty-four thousand, one hundred sixty-one".