548121387 has 32 divisors (see below), whose sum is σ = 829762560. Its totient is φ = 318921120.

The previous prime is 548121377. The next prime is 548121391. The reversal of 548121387 is 783121845.

548121387 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-548121387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (548121307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80448 + ... + 86994.

It is an arithmetic number, because the mean of its divisors is an integer number (25930080).

Almost surely, 2^548121387 is an apocalyptic number.

548121387 is a deficient number, since it is larger than the sum of its proper divisors (281641173).

548121387 is a wasteful number, since it uses less digits than its factorization.

548121387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6663.

The product of its digits is 53760, while the sum is 39.

The square root of 548121387 is about 23411.9923757035. The cubic root of 548121387 is about 818.3873655277.

The spelling of 548121387 in words is "five hundred forty-eight million, one hundred twenty-one thousand, three hundred eighty-seven".