454668169 has 2 divisors, whose sum is σ = 454668170. Its totient is φ = 454668168.

The previous prime is 454668161. The next prime is 454668191. The reversal of 454668169 is 961866454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 244766025 + 209902144 = 15645^2 + 14488^2 .

It is a cyclic number.

It is not a de Polignac number, because 454668169 - 2³ = 454668161 is a prime.

It is a super-2 number, since 2×454668169² = 413446287803625122, which contains 22 as substring.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (454668161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227334084 + 227334085.

It is an arithmetic number, because the mean of its divisors is an integer number (227334085).

Almost surely, 2^454668169 is an apocalyptic number.

It is an amenable number.

454668169 is a deficient number, since it is larger than the sum of its proper divisors (1).

454668169 is an equidigital number, since it uses as much as digits as its factorization.

454668169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 49.

The square root of 454668169 is about 21322.9493504065. The cubic root of 454668169 is about 768.9501456618.

It can be divided in two parts, 45466 and 8169, that added together give a palindrome (53635).

The spelling of 454668169 in words is "four hundred fifty-four million, six hundred sixty-eight thousand, one hundred sixty-nine".