1159663 has 2 divisors, whose sum is σ = 1159664. Its totient is φ = 1159662.

The previous prime is 1159661. The next prime is 1159709. The reversal of 1159663 is 3669511.

It is a weak prime.

It is an emirp because it is prime and its reverse (3669511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1159663 - 2¹ = 1159661 is a prime.

Together with 1159661, it forms a pair of twin primes.

1159663 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1159661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579831 + 579832.

It is an arithmetic number, because the mean of its divisors is an integer number (579832).

2^1159663 is an apocalyptic number.

1159663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1159663 is an equidigital number, since it uses as much as digits as its factorization.

1159663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 31.

The square root of 1159663 is about 1076.8765017401. The cubic root of 1159663 is about 105.0615814120.

The spelling of 1159663 in words is "one million, one hundred fifty-nine thousand, six hundred sixty-three".