548138 has 4 divisors (see below), whose sum is σ = 822210. Its totient is φ = 274068.

The previous prime is 548123. The next prime is 548143. The reversal of 548138 is 831845.

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

It can be written as a sum of positive squares in only one way, i.e., 413449 + 134689 = 643^2 + 367^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 548138.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 548138.

It is an unprimeable number.

548138 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137033 + ... + 137036.

2⁵⁴⁸¹³⁸ is an apocalyptic number.

548138 is a deficient number, since it is larger than the sum of its proper divisors (274072).

548138 is a wasteful number, since it uses less digits than its factorization.

548138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274071.

The product of its digits is 3840, while the sum is 29.

The square root of 548138 is about 740.3634242722. The cubic root of 548138 is about 81.8395633606.

It can be divided in two parts, 548 and 138, that added together give a palindrome (686).

The spelling of 548138 in words is "five hundred forty-eight thousand, one hundred thirty-eight".