1069234781 has 2 divisors, whose sum is σ = 1069234782. Its totient is φ = 1069234780.

The previous prime is 1069234763. The next prime is 1069234799. The reversal of 1069234781 is 1874329601.

It is a balanced prime because it is at equal distance from previous prime (1069234763) and next prime (1069234799).

It can be written as a sum of positive squares in only one way, i.e., 933302500 + 135932281 = 30550^2 + 11659^2 .

It is an emirp because it is prime and its reverse (1874329601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1069234781 - 2¹⁰ = 1069233757 is a prime.

It is a super-2 number, since 2×1069234781² = 2286526033800235922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1069234711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534617390 + 534617391.

It is an arithmetic number, because the mean of its divisors is an integer number (534617391).

Almost surely, 2^1069234781 is an apocalyptic number.

It is an amenable number.

1069234781 is a deficient number, since it is larger than the sum of its proper divisors (1).

1069234781 is an equidigital number, since it uses as much as digits as its factorization.

1069234781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 1069234781 is about 32699.1556618822. The cubic root of 1069234781 is about 1022.5652402663.

The spelling of 1069234781 in words is "one billion, sixty-nine million, two hundred thirty-four thousand, seven hundred eighty-one".