451445041 has 2 divisors, whose sum is σ = 451445042. Its totient is φ = 451445040.

The previous prime is 451445039. The next prime is 451445063. The reversal of 451445041 is 140544154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 416976400 + 34468641 = 20420^2 + 5871^2 .

It is a cyclic number.

It is not a de Polignac number, because 451445041 - 2¹ = 451445039 is a prime.

Together with 451445039, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (451445021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225722520 + 225722521.

It is an arithmetic number, because the mean of its divisors is an integer number (225722521).

Almost surely, 2^451445041 is an apocalyptic number.

It is an amenable number.

451445041 is a deficient number, since it is larger than the sum of its proper divisors (1).

451445041 is an equidigital number, since it uses as much as digits as its factorization.

451445041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 451445041 is about 21247.2360790763. The cubic root of 451445041 is about 767.1288141357.

Adding to 451445041 its reverse (140544154), we get a palindrome (591989195).

The spelling of 451445041 in words is "four hundred fifty-one million, four hundred forty-five thousand, forty-one".