1283493469 has 2 divisors, whose sum is σ = 1283493470. Its totient is φ = 1283493468.

The previous prime is 1283493467. The next prime is 1283493499. The reversal of 1283493469 is 9643943821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 916272900 + 367220569 = 30270^2 + 19163^2 .

It is a cyclic number.

It is not a de Polignac number, because 1283493469 - 2¹ = 1283493467 is a prime.

It is a super-2 number, since 2×1283493469² = 3294710969931307922, which contains 22 as substring.

Together with 1283493467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1283493461) 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, 641746734 + 641746735.

It is an arithmetic number, because the mean of its divisors is an integer number (641746735).

Almost surely, 2^1283493469 is an apocalyptic number.

It is an amenable number.

1283493469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1283493469 is an equidigital number, since it uses as much as digits as its factorization.

1283493469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 49.

The square root of 1283493469 is about 35825.8770862627. The cubic root of 1283493469 is about 1086.7539341239.

The spelling of 1283493469 in words is "one billion, two hundred eighty-three million, four hundred ninety-three thousand, four hundred sixty-nine".