45072689 has 2 divisors, whose sum is σ = 45072690. Its totient is φ = 45072688.

The previous prime is 45072679. The next prime is 45072691. The reversal of 45072689 is 98627054.

45072689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24750625 + 20322064 = 4975^2 + 4508^2 .

It is a cyclic number.

It is not a de Polignac number, because 45072689 - 2⁴ = 45072673 is a prime.

It is a Sophie Germain prime.

Together with 45072691, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (45072619) 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, 22536344 + 22536345.

It is an arithmetic number, because the mean of its divisors is an integer number (22536345).

Almost surely, 2^45072689 is an apocalyptic number.

It is an amenable number.

45072689 is a deficient number, since it is larger than the sum of its proper divisors (1).

45072689 is an equidigital number, since it uses as much as digits as its factorization.

45072689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 45072689 is about 6713.6196645327. The cubic root of 45072689 is about 355.8807437312.

The spelling of 45072689 in words is "forty-five million, seventy-two thousand, six hundred eighty-nine".