45745489 has 2 divisors, whose sum is σ = 45745490. Its totient is φ = 45745488.

The previous prime is 45745477. The next prime is 45745501. The reversal of 45745489 is 98454754.

It is a balanced prime because it is at equal distance from previous prime (45745477) and next prime (45745501).

It can be written as a sum of positive squares in only one way, i.e., 44997264 + 748225 = 6708^2 + 865^2 .

It is a cyclic number.

It is not a de Polignac number, because 45745489 - 2⁵ = 45745457 is a prime.

It is not a weakly prime, because it can be changed into another prime (45745289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22872744 + 22872745.

It is an arithmetic number, because the mean of its divisors is an integer number (22872745).

Almost surely, 2^45745489 is an apocalyptic number.

It is an amenable number.

45745489 is a deficient number, since it is larger than the sum of its proper divisors (1).

45745489 is an equidigital number, since it uses as much as digits as its factorization.

45745489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 806400, while the sum is 46.

The square root of 45745489 is about 6763.5411582987. The cubic root of 45745489 is about 357.6427493240.

The spelling of 45745489 in words is "forty-five million, seven hundred forty-five thousand, four hundred eighty-nine".