168454441 has 3 divisors (see below), whose sum is σ = 168467421. Its totient is φ = 168441462.

The previous prime is 168454427. The next prime is 168454457. The reversal of 168454441 is 144454861.

The square root of 168454441 is 12979.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 144454861 = 3851 ⋅37511.

It is not a de Polignac number, because 168454441 - 2¹¹ = 168452393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 168454441.

It is not an unprimeable number, because it can be changed into a prime (168454141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 6490 + ... + 19468.

It is an arithmetic number, because the mean of its divisors is an integer number (56155807).

Almost surely, 2^168454441 is an apocalyptic number.

168454441 is the 12979-th square number.

168454441 is the 6490-th centered octagonal number.

It is an amenable number.

168454441 is a deficient number, since it is larger than the sum of its proper divisors (12980).

168454441 is an frugal number, since it uses more digits than its factorization.

168454441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25958 (or 12979 counting only the distinct ones).

The product of its digits is 61440, while the sum is 37.

The cubic root of 168454441 is about 552.2819144325.

The spelling of 168454441 in words is "one hundred sixty-eight million, four hundred fifty-four thousand, four hundred forty-one".