1248853049 has 2 divisors, whose sum is σ = 1248853050. Its totient is φ = 1248853048.

The previous prime is 1248853037. The next prime is 1248853051. The reversal of 1248853049 is 9403588421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 667705600 + 581147449 = 25840^2 + 24107^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1248853049 is a prime.

Together with 1248853051, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1248753049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624426524 + 624426525.

It is an arithmetic number, because the mean of its divisors is an integer number (624426525).

Almost surely, 2^1248853049 is an apocalyptic number.

It is an amenable number.

1248853049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1248853049 is an equidigital number, since it uses as much as digits as its factorization.

1248853049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 1248853049 is about 35339.1150002373. The cubic root of 1248853049 is about 1076.8877733918.

The spelling of 1248853049 in words is "one billion, two hundred forty-eight million, eight hundred fifty-three thousand, forty-nine".