548239157 has 2 divisors, whose sum is σ = 548239158. Its totient is φ = 548239156.

The previous prime is 548239117. The next prime is 548239163. The reversal of 548239157 is 751932845.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 286252561 + 261986596 = 16919^2 + 16186^2 .

It is a cyclic number.

It is not a de Polignac number, because 548239157 - 2¹⁶ = 548173621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (548239117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274119578 + 274119579.

It is an arithmetic number, because the mean of its divisors is an integer number (274119579).

Almost surely, 2^548239157 is an apocalyptic number.

It is an amenable number.

548239157 is a deficient number, since it is larger than the sum of its proper divisors (1).

548239157 is an equidigital number, since it uses as much as digits as its factorization.

548239157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 44.

The square root of 548239157 is about 23414.5074045985. The cubic root of 548239157 is about 818.4459745514.

The spelling of 548239157 in words is "five hundred forty-eight million, two hundred thirty-nine thousand, one hundred fifty-seven".