1043256443 has 2 divisors, whose sum is σ = 1043256444. Its totient is φ = 1043256442.

The previous prime is 1043256407. The next prime is 1043256449. The reversal of 1043256443 is 3446523401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1043256443 - 2¹² = 1043252347 is a prime.

It is a super-2 number, since 2×1043256443² = 2176768011722024498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1043256449) 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, 521628221 + 521628222.

It is an arithmetic number, because the mean of its divisors is an integer number (521628222).

Almost surely, 2^1043256443 is an apocalyptic number.

1043256443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043256443 is an equidigital number, since it uses as much as digits as its factorization.

1043256443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 1043256443 is about 32299.4805376186. The cubic root of 1043256443 is about 1014.2157686428.

Adding to 1043256443 its reverse (3446523401), we get a palindrome (4489779844).

The spelling of 1043256443 in words is "one billion, forty-three million, two hundred fifty-six thousand, four hundred forty-three".