248459857 has 2 divisors, whose sum is σ = 248459858. Its totient is φ = 248459856.

The previous prime is 248459843. The next prime is 248459909. The reversal of 248459857 is 758954842.

It is an a-pointer prime, because the next prime (248459909) can be obtained adding 248459857 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197993041 + 50466816 = 14071^2 + 7104^2 .

It is a cyclic number.

It is not a de Polignac number, because 248459857 - 2¹¹ = 248457809 is a prime.

It is not a weakly prime, because it can be changed into another prime (248459557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124229928 + 124229929.

It is an arithmetic number, because the mean of its divisors is an integer number (124229929).

Almost surely, 2^248459857 is an apocalyptic number.

It is an amenable number.

248459857 is a deficient number, since it is larger than the sum of its proper divisors (1).

248459857 is an equidigital number, since it uses as much as digits as its factorization.

248459857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3225600, while the sum is 52.

The square root of 248459857 is about 15762.6094603654. The cubic root of 248459857 is about 628.6642202420.

The spelling of 248459857 in words is "two hundred forty-eight million, four hundred fifty-nine thousand, eight hundred fifty-seven".