45028649 has 2 divisors, whose sum is σ = 45028650. Its totient is φ = 45028648.

The previous prime is 45028639. The next prime is 45028693. The reversal of 45028649 is 94682054.

45028649 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., 30913600 + 14115049 = 5560^2 + 3757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45028649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45028609) 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, 22514324 + 22514325.

It is an arithmetic number, because the mean of its divisors is an integer number (22514325).

Almost surely, 2^45028649 is an apocalyptic number.

It is an amenable number.

45028649 is a deficient number, since it is larger than the sum of its proper divisors (1).

45028649 is an equidigital number, since it uses as much as digits as its factorization.

45028649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 45028649 is about 6710.3389631225. The cubic root of 45028649 is about 355.7647969815.

The spelling of 45028649 in words is "forty-five million, twenty-eight thousand, six hundred forty-nine".