1282643273 has 2 divisors, whose sum is σ = 1282643274. Its totient is φ = 1282643272.

The previous prime is 1282643269. The next prime is 1282643293. The reversal of 1282643273 is 3723462821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1224090169 + 58553104 = 34987^2 + 7652^2 .

It is a cyclic number.

It is not a de Polignac number, because 1282643273 - 2² = 1282643269 is a prime.

It is not a weakly prime, because it can be changed into another prime (1282643293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641321636 + 641321637.

It is an arithmetic number, because the mean of its divisors is an integer number (641321637).

Almost surely, 2^1282643273 is an apocalyptic number.

It is an amenable number.

1282643273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1282643273 is an equidigital number, since it uses as much as digits as its factorization.

1282643273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 38.

The square root of 1282643273 is about 35814.0094516099. The cubic root of 1282643273 is about 1086.5139230508.

The spelling of 1282643273 in words is "one billion, two hundred eighty-two million, six hundred forty-three thousand, two hundred seventy-three".