1265628283 has 2 divisors, whose sum is σ = 1265628284. Its totient is φ = 1265628282.

The previous prime is 1265628281. The next prime is 1265628313. The reversal of 1265628283 is 3828265621.

It is a weak prime.

It is an emirp because it is prime and its reverse (3828265621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1265628283 - 2¹ = 1265628281 is a prime.

Together with 1265628281, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1265628281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632814141 + 632814142.

It is an arithmetic number, because the mean of its divisors is an integer number (632814142).

Almost surely, 2^1265628283 is an apocalyptic number.

1265628283 is a deficient number, since it is larger than the sum of its proper divisors (1).

1265628283 is an equidigital number, since it uses as much as digits as its factorization.

1265628283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 43.

The square root of 1265628283 is about 35575.6698180090. The cubic root of 1265628283 is about 1081.6881130197.

The spelling of 1265628283 in words is "one billion, two hundred sixty-five million, six hundred twenty-eight thousand, two hundred eighty-three".