1248349841 has 2 divisors, whose sum is σ = 1248349842. Its totient is φ = 1248349840.

The previous prime is 1248349787. The next prime is 1248349849. The reversal of 1248349841 is 1489438421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1248138241 + 211600 = 35329^2 + 460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1248349841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1248349792 and 1248349801.

It is not a weakly prime, because it can be changed into another prime (1248349849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624174920 + 624174921.

It is an arithmetic number, because the mean of its divisors is an integer number (624174921).

Almost surely, 2^1248349841 is an apocalyptic number.

It is an amenable number.

1248349841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1248349841 is an equidigital number, since it uses as much as digits as its factorization.

1248349841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221184, while the sum is 44.

The square root of 1248349841 is about 35331.9945799837. The cubic root of 1248349841 is about 1076.7431149675.

The spelling of 1248349841 in words is "one billion, two hundred forty-eight million, three hundred forty-nine thousand, eight hundred forty-one".