45821449 has 2 divisors, whose sum is σ = 45821450. Its totient is φ = 45821448.

The previous prime is 45821437. The next prime is 45821467. The reversal of 45821449 is 94412854.

45821449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45805824 + 15625 = 6768^2 + 125^2 .

It is a cyclic number.

It is not a de Polignac number, because 45821449 - 2⁹ = 45820937 is a prime.

It is not a weakly prime, because it can be changed into another prime (45821249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22910724 + 22910725.

It is an arithmetic number, because the mean of its divisors is an integer number (22910725).

Almost surely, 2^45821449 is an apocalyptic number.

It is an amenable number.

45821449 is a deficient number, since it is larger than the sum of its proper divisors (1).

45821449 is an equidigital number, since it uses as much as digits as its factorization.

45821449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 37.

The square root of 45821449 is about 6769.1542307736. The cubic root of 45821449 is about 357.8405941176.

The spelling of 45821449 in words is "forty-five million, eight hundred twenty-one thousand, four hundred forty-nine".