548778148 has 12 divisors (see below), whose sum is σ = 960549660. Its totient is φ = 274335392.

The previous prime is 548778133. The next prime is 548778149. The reversal of 548778148 is 841877845.

It can be written as a sum of positive squares in 2 ways, for example, as 79709184 + 469068964 = 8928^2 + 21658^2 .

It is a super-3 number, since 3×548778148³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 548778095 and 548778104.

It is not an unprimeable number, because it can be changed into a prime (548778149) 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, 17490 + ... + 37462.

It is an arithmetic number, because the mean of its divisors is an integer number (80045805).

Almost surely, 2^548778148 is an apocalyptic number.

It is an amenable number.

548778148 is a deficient number, since it is larger than the sum of its proper divisors (411771512).

548778148 is a wasteful number, since it uses less digits than its factorization.

548778148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26846 (or 26844 counting only the distinct ones).

The product of its digits is 2007040, while the sum is 52.

The square root of 548778148 is about 23426.0143430333. The cubic root of 548778148 is about 818.7140999507.

The spelling of 548778148 in words is "five hundred forty-eight million, seven hundred seventy-eight thousand, one hundred forty-eight".