1012663 has 2 divisors, whose sum is σ = 1012664. Its totient is φ = 1012662.

The previous prime is 1012657. The next prime is 1012679. The reversal of 1012663 is 3662101.

It is a weak prime.

It is an emirp because it is prime and its reverse (3662101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1012663 - 2⁵ = 1012631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1012663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506331 + 506332.

It is an arithmetic number, because the mean of its divisors is an integer number (506332).

2^1012663 is an apocalyptic number.

1012663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012663 is an equidigital number, since it uses as much as digits as its factorization.

1012663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1012663 is about 1006.3115819665. The cubic root of 1012663 is about 100.4203307452.

Adding to 1012663 its reverse (3662101), we get a palindrome (4674764).

The spelling of 1012663 in words is "one million, twelve thousand, six hundred sixty-three".