1288468339 has 2 divisors, whose sum is σ = 1288468340. Its totient is φ = 1288468338.

The previous prime is 1288468309. The next prime is 1288468343. The reversal of 1288468339 is 9338648821.

It is a strong prime.

It is an emirp because it is prime and its reverse (9338648821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1288468339 is a prime.

It is not a weakly prime, because it can be changed into another prime (1288468309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 644234169 + 644234170.

It is an arithmetic number, because the mean of its divisors is an integer number (644234170).

Almost surely, 2^1288468339 is an apocalyptic number.

1288468339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1288468339 is an equidigital number, since it uses as much as digits as its factorization.

1288468339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1990656, while the sum is 52.

The square root of 1288468339 is about 35895.2411748410. The cubic root of 1288468339 is about 1088.1562239063.

The spelling of 1288468339 in words is "one billion, two hundred eighty-eight million, four hundred sixty-eight thousand, three hundred thirty-nine".