248912247281 has 2 divisors, whose sum is σ = 248912247282. Its totient is φ = 248912247280.

The previous prime is 248912247263. The next prime is 248912247301. The reversal of 248912247281 is 182742219842.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 247964161600 + 948085681 = 497960^2 + 30791^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248912247281 is a prime.

It is a super-2 number, since 2×248912247281² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (248912247251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124456123640 + 124456123641.

It is an arithmetic number, because the mean of its divisors is an integer number (124456123641).

Almost surely, 2^248912247281 is an apocalyptic number.

It is an amenable number.

248912247281 is a deficient number, since it is larger than the sum of its proper divisors (1).

248912247281 is an equidigital number, since it uses as much as digits as its factorization.

248912247281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1032192, while the sum is 50.

The spelling of 248912247281 in words is "two hundred forty-eight billion, nine hundred twelve million, two hundred forty-seven thousand, two hundred eighty-one".