45281449 has 2 divisors, whose sum is σ = 45281450. Its totient is φ = 45281448.

The previous prime is 45281447. The next prime is 45281471. The reversal of 45281449 is 94418254.

45281449 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., 32855824 + 12425625 = 5732^2 + 3525^2 .

It is a cyclic number.

It is not a de Polignac number, because 45281449 - 2¹ = 45281447 is a prime.

Together with 45281447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (45281447) 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, 22640724 + 22640725.

It is an arithmetic number, because the mean of its divisors is an integer number (22640725).

Almost surely, 2^45281449 is an apocalyptic number.

It is an amenable number.

45281449 is a deficient number, since it is larger than the sum of its proper divisors (1).

45281449 is an equidigital number, since it uses as much as digits as its factorization.

45281449 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 45281449 is about 6729.1492032797. The cubic root of 45281449 is about 356.4293335734.

The spelling of 45281449 in words is "forty-five million, two hundred eighty-one thousand, four hundred forty-nine".