1283000773 has 2 divisors, whose sum is σ = 1283000774. Its totient is φ = 1283000772.

The previous prime is 1283000737. The next prime is 1283000777. The reversal of 1283000773 is 3770003821.

Together with previous prime (1283000737) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1149413409 + 133587364 = 33903^2 + 11558^2 .

It is an emirp because it is prime and its reverse (3770003821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1283000773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1283000777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641500386 + 641500387.

It is an arithmetic number, because the mean of its divisors is an integer number (641500387).

Almost surely, 2^1283000773 is an apocalyptic number.

It is an amenable number.

1283000773 is a deficient number, since it is larger than the sum of its proper divisors (1).

1283000773 is an equidigital number, since it uses as much as digits as its factorization.

1283000773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 1283000773 is about 35819.0001675089. Note that the first 3 decimals coincide. The cubic root of 1283000773 is about 1086.6148585314.

The spelling of 1283000773 in words is "one billion, two hundred eighty-three million, seven hundred seventy-three", and thus it is an aban number.