548372138 has 8 divisors (see below), whose sum is σ = 822658788. Its totient is φ = 274152544.

The previous prime is 548372117. The next prime is 548372147. The reversal of 548372138 is 831273845.

It can be written as a sum of positive squares in 2 ways, for example, as 532824889 + 15547249 = 23083^2 + 3943^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 548372095 and 548372104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18620 + ... + 37992.

Almost surely, 2^548372138 is an apocalyptic number.

548372138 is a deficient number, since it is larger than the sum of its proper divisors (274286650).

548372138 is a wasteful number, since it uses less digits than its factorization.

548372138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33528.

The product of its digits is 161280, while the sum is 41.

The square root of 548372138 is about 23417.3469462277. The cubic root of 548372138 is about 818.5121433417.

The spelling of 548372138 in words is "five hundred forty-eight million, three hundred seventy-two thousand, one hundred thirty-eight".