1282065409 has 2 divisors, whose sum is σ = 1282065410. Its totient is φ = 1282065408.

The previous prime is 1282065403. The next prime is 1282065427. The reversal of 1282065409 is 9045602821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 968952384 + 313113025 = 31128^2 + 17695^2 .

It is a cyclic number.

It is not a de Polignac number, because 1282065409 - 2³ = 1282065401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1282065401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641032704 + 641032705.

It is an arithmetic number, because the mean of its divisors is an integer number (641032705).

Almost surely, 2^1282065409 is an apocalyptic number.

It is an amenable number.

1282065409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1282065409 is an equidigital number, since it uses as much as digits as its factorization.

1282065409 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 37.

The square root of 1282065409 is about 35805.9409735312. The cubic root of 1282065409 is about 1086.3507309908.

The spelling of 1282065409 in words is "one billion, two hundred eighty-two million, sixty-five thousand, four hundred nine".