548393149 has 2 divisors, whose sum is σ = 548393150. Its totient is φ = 548393148.

The previous prime is 548393129. The next prime is 548393189. The reversal of 548393149 is 941393845.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 494840025 + 53553124 = 22245^2 + 7318^2 .

It is a cyclic number.

It is not a de Polignac number, because 548393149 - 2¹¹ = 548391101 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 548393099 and 548393108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (548393129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274196574 + 274196575.

It is an arithmetic number, because the mean of its divisors is an integer number (274196575).

Almost surely, 2^548393149 is an apocalyptic number.

It is an amenable number.

548393149 is a deficient number, since it is larger than the sum of its proper divisors (1).

548393149 is an equidigital number, since it uses as much as digits as its factorization.

548393149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 46.

The square root of 548393149 is about 23417.7955623496. The cubic root of 548393149 is about 818.5225970329.

The spelling of 548393149 in words is "five hundred forty-eight million, three hundred ninety-three thousand, one hundred forty-nine".