1285283 has 2 divisors, whose sum is σ = 1285284. Its totient is φ = 1285282.

The previous prime is 1285279. The next prime is 1285289. The reversal of 1285283 is 3825821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1285283 - 2² = 1285279 is a prime.

It is not a weakly prime, because it can be changed into another prime (1285289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642641 + 642642.

It is an arithmetic number, because the mean of its divisors is an integer number (642642).

2^1285283 is an apocalyptic number.

1285283 is a deficient number, since it is larger than the sum of its proper divisors (1).

1285283 is an equidigital number, since it uses as much as digits as its factorization.

1285283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 29.

The square root of 1285283 is about 1133.7032239524. The cubic root of 1285283 is about 108.7258774170.

The spelling of 1285283 in words is "one million, two hundred eighty-five thousand, two hundred eighty-three".