451441 has 2 divisors, whose sum is σ = 451442. Its totient is φ = 451440.

The previous prime is 451439. The next prime is 451481. The reversal of 451441 is 144154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 442225 + 9216 = 665^2 + 96^2 .

It is a cyclic number.

It is not a de Polignac number, because 451441 - 2¹ = 451439 is a prime.

Together with 451439, it forms a pair of twin primes.

451441 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (451411) 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, 225720 + 225721.

It is an arithmetic number, because the mean of its divisors is an integer number (225721).

2⁴⁵¹⁴⁴¹ is an apocalyptic number.

It is an amenable number.

451441 is a deficient number, since it is larger than the sum of its proper divisors (1).

451441 is an equidigital number, since it uses as much as digits as its factorization.

451441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 320, while the sum is 19.

The square root of 451441 is about 671.8935927660. The cubic root of 451441 is about 76.7126525207.

Adding to 451441 its reverse (144154), we get a palindrome (595595).

It can be divided in two parts, 451 and 441, that multiplied together give a palindrome (198891).

The spelling of 451441 in words is "four hundred fifty-one thousand, four hundred forty-one".