1282945969 has 2 divisors, whose sum is σ = 1282945970. Its totient is φ = 1282945968.

The previous prime is 1282945967. The next prime is 1282946033. The reversal of 1282945969 is 9695492821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1061977744 + 220968225 = 32588^2 + 14865^2 .

It is a cyclic number.

It is not a de Polignac number, because 1282945969 - 2¹ = 1282945967 is a prime.

It is a super-2 number, since 2×1282945969² = 3291900718746697922, which contains 22 as substring.

Together with 1282945967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1282945967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641472984 + 641472985.

It is an arithmetic number, because the mean of its divisors is an integer number (641472985).

Almost surely, 2^1282945969 is an apocalyptic number.

It is an amenable number.

1282945969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1282945969 is an equidigital number, since it uses as much as digits as its factorization.

1282945969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2799360, while the sum is 55.

The square root of 1282945969 is about 35818.2351463609. The cubic root of 1282945969 is about 1086.5993865509.

The spelling of 1282945969 in words is "one billion, two hundred eighty-two million, nine hundred forty-five thousand, nine hundred sixty-nine".