1052047649 has 2 divisors, whose sum is σ = 1052047650. Its totient is φ = 1052047648.

The previous prime is 1052047643. The next prime is 1052047679. The reversal of 1052047649 is 9467402501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 945132049 + 106915600 = 30743^2 + 10340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1052047649 is a prime.

It is a super-2 number, since 2×1052047649² = 2213608511532854402, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1052047643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526023824 + 526023825.

It is an arithmetic number, because the mean of its divisors is an integer number (526023825).

Almost surely, 2^1052047649 is an apocalyptic number.

It is an amenable number.

1052047649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1052047649 is an equidigital number, since it uses as much as digits as its factorization.

1052047649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 1052047649 is about 32435.2840129387. The cubic root of 1052047649 is about 1017.0566334987.

The spelling of 1052047649 in words is "one billion, fifty-two million, forty-seven thousand, six hundred forty-nine".