451360649 has 2 divisors, whose sum is σ = 451360650. Its totient is φ = 451360648.

The previous prime is 451360621. The next prime is 451360673. The reversal of 451360649 is 946063154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 280797049 + 170563600 = 16757^2 + 13060^2 .

It is a cyclic number.

It is not a de Polignac number, because 451360649 - 2¹² = 451356553 is a prime.

It is not a weakly prime, because it can be changed into another prime (451360249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225680324 + 225680325.

It is an arithmetic number, because the mean of its divisors is an integer number (225680325).

Almost surely, 2^451360649 is an apocalyptic number.

It is an amenable number.

451360649 is a deficient number, since it is larger than the sum of its proper divisors (1).

451360649 is an equidigital number, since it uses as much as digits as its factorization.

451360649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 451360649 is about 21245.2500338311. The cubic root of 451360649 is about 767.0810094467.

The spelling of 451360649 in words is "four hundred fifty-one million, three hundred sixty thousand, six hundred forty-nine".