548909117 has 4 divisors (see below), whose sum is σ = 549454140. Its totient is φ = 548364096.

The previous prime is 548909087. The next prime is 548909161. The reversal of 548909117 is 711909845.

548909117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 372258436 + 176650681 = 19294^2 + 13291^2 .

It is a cyclic number.

It is not a de Polignac number, because 548909117 - 2²² = 544714813 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 (548909717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270998 + ... + 273015.

It is an arithmetic number, because the mean of its divisors is an integer number (137363535).

Almost surely, 2^548909117 is an apocalyptic number.

It is an amenable number.

548909117 is a deficient number, since it is larger than the sum of its proper divisors (545023).

548909117 is a wasteful number, since it uses less digits than its factorization.

548909117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545022.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 548909117 is about 23428.8095514902. The cubic root of 548909117 is about 818.7792250159.

The spelling of 548909117 in words is "five hundred forty-eight million, nine hundred nine thousand, one hundred seventeen".