1047499249 has 2 divisors, whose sum is σ = 1047499250. Its totient is φ = 1047499248.

The previous prime is 1047499247. The next prime is 1047499253. The reversal of 1047499249 is 9429947401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 879537649 + 167961600 = 29657^2 + 12960^2 .

It is a cyclic number.

It is not a de Polignac number, because 1047499249 - 2¹ = 1047499247 is a prime.

Together with 1047499247, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1047499247) 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, 523749624 + 523749625.

It is an arithmetic number, because the mean of its divisors is an integer number (523749625).

Almost surely, 2^1047499249 is an apocalyptic number.

It is an amenable number.

1047499249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1047499249 is an equidigital number, since it uses as much as digits as its factorization.

1047499249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 1047499249 is about 32365.0930633607. The cubic root of 1047499249 is about 1015.5888092748.

The spelling of 1047499249 in words is "one billion, forty-seven million, four hundred ninety-nine thousand, two hundred forty-nine".