1282345399 has 2 divisors, whose sum is σ = 1282345400. Its totient is φ = 1282345398.

The previous prime is 1282345391. The next prime is 1282345429. The reversal of 1282345399 is 9935432821.

It is a weak prime.

It is an emirp because it is prime and its reverse (9935432821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1282345399 - 2³ = 1282345391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1282345391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641172699 + 641172700.

It is an arithmetic number, because the mean of its divisors is an integer number (641172700).

Almost surely, 2^1282345399 is an apocalyptic number.

1282345399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1282345399 is an equidigital number, since it uses as much as digits as its factorization.

1282345399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 46.

The square root of 1282345399 is about 35809.8505861167. The cubic root of 1282345399 is about 1086.4298078719.

The spelling of 1282345399 in words is "one billion, two hundred eighty-two million, three hundred forty-five thousand, three hundred ninety-nine".