1287930283 has 2 divisors, whose sum is σ = 1287930284. Its totient is φ = 1287930282.

The previous prime is 1287930233. The next prime is 1287930289. The reversal of 1287930283 is 3820397821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1287930283 - 2⁹ = 1287929771 is a prime.

It is not a weakly prime, because it can be changed into another prime (1287930289) 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, 643965141 + 643965142.

It is an arithmetic number, because the mean of its divisors is an integer number (643965142).

Almost surely, 2^1287930283 is an apocalyptic number.

1287930283 is a deficient number, since it is larger than the sum of its proper divisors (1).

1287930283 is an equidigital number, since it uses as much as digits as its factorization.

1287930283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 1287930283 is about 35887.7455825801. The cubic root of 1287930283 is about 1088.0047338295.

The spelling of 1287930283 in words is "one billion, two hundred eighty-seven million, nine hundred thirty thousand, two hundred eighty-three".