1285763 has 2 divisors, whose sum is σ = 1285764. Its totient is φ = 1285762.

The previous prime is 1285759. The next prime is 1285777. The reversal of 1285763 is 3675821.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1285763 - 2² = 1285759 is a prime.

It is not a weakly prime, because it can be changed into another prime (1285703) 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, 642881 + 642882.

It is an arithmetic number, because the mean of its divisors is an integer number (642882).

2^1285763 is an apocalyptic number.

1285763 is a deficient number, since it is larger than the sum of its proper divisors (1).

1285763 is an equidigital number, since it uses as much as digits as its factorization.

1285763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 1285763 is about 1133.9148998051. The cubic root of 1285763 is about 108.7394106041.

It can be divided in two parts, 1285 and 763, that added together give a 11-th power (2048 = 2¹¹).

The spelling of 1285763 in words is "one million, two hundred eighty-five thousand, seven hundred sixty-three".