1249010249 has 2 divisors, whose sum is σ = 1249010250. Its totient is φ = 1249010248.

The previous prime is 1249010177. The next prime is 1249010263. The reversal of 1249010249 is 9420109421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 884467600 + 364542649 = 29740^2 + 19093^2 .

It is a cyclic number.

It is not a de Polignac number, because 1249010249 - 2¹⁶ = 1248944713 is a prime.

It is not a weakly prime, because it can be changed into another prime (1249010149) 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, 624505124 + 624505125.

It is an arithmetic number, because the mean of its divisors is an integer number (624505125).

Almost surely, 2^1249010249 is an apocalyptic number.

It is an amenable number.

1249010249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1249010249 is an equidigital number, since it uses as much as digits as its factorization.

1249010249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1249010249 is about 35341.3390946070. The cubic root of 1249010249 is about 1076.9329560911.

The spelling of 1249010249 in words is "one billion, two hundred forty-nine million, ten thousand, two hundred forty-nine".