1284500069 has 2 divisors, whose sum is σ = 1284500070. Its totient is φ = 1284500068.

The previous prime is 1284500051. The next prime is 1284500071. The reversal of 1284500069 is 9600054821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1073872900 + 210627169 = 32770^2 + 14513^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1284500069 is a prime.

It is a super-2 number, since 2×1284500069² = 3299880854522009522, which contains 22 as substring.

Together with 1284500071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1284500369) 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, 642250034 + 642250035.

It is an arithmetic number, because the mean of its divisors is an integer number (642250035).

Almost surely, 2^1284500069 is an apocalyptic number.

It is an amenable number.

1284500069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1284500069 is an equidigital number, since it uses as much as digits as its factorization.

1284500069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1284500069 is about 35839.9228375285. The cubic root of 1284500069 is about 1087.0379611913.

The spelling of 1284500069 in words is "one billion, two hundred eighty-four million, five hundred thousand, sixty-nine".