454021 has 2 divisors, whose sum is σ = 454022. Its totient is φ = 454020.

The previous prime is 454009. The next prime is 454031. The reversal of 454021 is 120454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396900 + 57121 = 630^2 + 239^2 .

It is a cyclic number.

It is not a de Polignac number, because 454021 - 2¹³ = 445829 is a prime.

It is a super-2 number, since 2×454021² = 412270136882, which contains 22 as substring.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 453986 and 454004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454031) 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 as a sum of consecutive naturals, namely, 227010 + 227011.

It is an arithmetic number, because the mean of its divisors is an integer number (227011).

2⁴⁵⁴⁰²¹ is an apocalyptic number.

It is an amenable number.

454021 is a deficient number, since it is larger than the sum of its proper divisors (1).

454021 is an equidigital number, since it uses as much as digits as its factorization.

454021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 454021 is about 673.8108043064. The cubic root of 454021 is about 76.8585134408.

Adding to 454021 its reverse (120454), we get a palindrome (574475).

The spelling of 454021 in words is "four hundred fifty-four thousand, twenty-one".