1010043449 has 2 divisors, whose sum is σ = 1010043450. Its totient is φ = 1010043448.

The previous prime is 1010043421. The next prime is 1010043473. The reversal of 1010043449 is 9443400101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 949872400 + 60171049 = 30820^2 + 7757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010043449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1010043409) 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, 505021724 + 505021725.

It is an arithmetic number, because the mean of its divisors is an integer number (505021725).

Almost surely, 2^1010043449 is an apocalyptic number.

It is an amenable number.

1010043449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010043449 is an equidigital number, since it uses as much as digits as its factorization.

1010043449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1010043449 is about 31781.1807364044. The cubic root of 1010043449 is about 1003.3366705800.

The spelling of 1010043449 in words is "one billion, ten million, forty-three thousand, four hundred forty-nine".