1282945667 has 2 divisors, whose sum is σ = 1282945668. Its totient is φ = 1282945666.

The previous prime is 1282945639. The next prime is 1282945709. The reversal of 1282945667 is 7665492821.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1282945667 is a prime.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641472833 + 641472834.

It is an arithmetic number, because the mean of its divisors is an integer number (641472834).

Almost surely, 2^1282945667 is an apocalyptic number.

1282945667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1282945667 is an equidigital number, since it uses as much as digits as its factorization.

1282945667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 50.

The square root of 1282945667 is about 35818.2309306308. The cubic root of 1282945667 is about 1086.5993012906.

The spelling of 1282945667 in words is "one billion, two hundred eighty-two million, nine hundred forty-five thousand, six hundred sixty-seven".