45318389 has 2 divisors, whose sum is σ = 45318390. Its totient is φ = 45318388.

The previous prime is 45318359. The next prime is 45318421. The reversal of 45318389 is 98381354.

45318389 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., 36663025 + 8655364 = 6055^2 + 2942^2 .

It is a cyclic number.

It is not a de Polignac number, because 45318389 - 2¹² = 45314293 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45318359) 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, 22659194 + 22659195.

It is an arithmetic number, because the mean of its divisors is an integer number (22659195).

Almost surely, 2^45318389 is an apocalyptic number.

It is an amenable number.

45318389 is a deficient number, since it is larger than the sum of its proper divisors (1).

45318389 is an equidigital number, since it uses as much as digits as its factorization.

45318389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 41.

The square root of 45318389 is about 6731.8934186453. The cubic root of 45318389 is about 356.5262306556.

The spelling of 45318389 in words is "forty-five million, three hundred eighteen thousand, three hundred eighty-nine".