548902139 has 2 divisors, whose sum is σ = 548902140. Its totient is φ = 548902138.

The previous prime is 548902129. The next prime is 548902147. The reversal of 548902139 is 931209845.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 548902139 - 2⁸ = 548901883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 548902096 and 548902105.

It is not a weakly prime, because it can be changed into another prime (548902129) by changing a digit.

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 as a sum of consecutive naturals, namely, 274451069 + 274451070.

It is an arithmetic number, because the mean of its divisors is an integer number (274451070).

Almost surely, 2^548902139 is an apocalyptic number.

548902139 is a deficient number, since it is larger than the sum of its proper divisors (1).

548902139 is an equidigital number, since it uses as much as digits as its factorization.

548902139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 548902139 is about 23428.6606317988. The cubic root of 548902139 is about 818.7757554278.

The spelling of 548902139 in words is "five hundred forty-eight million, nine hundred two thousand, one hundred thirty-nine".