48318309 has 16 divisors (see below), whose sum is σ = 77089600. Its totient is φ = 29734128.

The previous prime is 48318307. The next prime is 48318317. The reversal of 48318309 is 90381384.

48318309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 48318309 - 2¹ = 48318307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48318307) 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, 68479 + ... + 69180.

It is an arithmetic number, because the mean of its divisors is an integer number (4818100).

Almost surely, 2^48318309 is an apocalyptic number.

It is an amenable number.

48318309 is a deficient number, since it is larger than the sum of its proper divisors (28771291).

48318309 is a wasteful number, since it uses less digits than its factorization.

48318309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137681 (or 137675 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 48318309 is about 6951.1372450844. The cubic root of 48318309 is about 364.2256907530.

The spelling of 48318309 in words is "forty-eight million, three hundred eighteen thousand, three hundred nine".