45459989 has 16 divisors (see below), whose sum is σ = 50947200. Its totient is φ = 40450752.

The previous prime is 45459971. The next prime is 45460039. The reversal of 45459989 is 98995454.

45459989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-45459989 is a prime.

It is a super-2 number, since 2×45459989² = 4133221199760242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 45459989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45459929) 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 in 15 ways as a sum of consecutive naturals, for example, 93104 + ... + 93590.

It is an arithmetic number, because the mean of its divisors is an integer number (3184200).

Almost surely, 2^45459989 is an apocalyptic number.

It is an amenable number.

45459989 is a deficient number, since it is larger than the sum of its proper divisors (5487211).

45459989 is an equidigital number, since it uses as much as digits as its factorization.

45459989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557 (or 523 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 53.

The square root of 45459989 is about 6742.4023166821. The cubic root of 45459989 is about 356.8971737117.

The spelling of 45459989 in words is "forty-five million, four hundred fifty-nine thousand, nine hundred eighty-nine".