1163003 has 2 divisors, whose sum is σ = 1163004. Its totient is φ = 1163002.

The previous prime is 1162991. The next prime is 1163011. The reversal of 1163003 is 3003611.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1163003 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1163033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581501 + 581502.

It is an arithmetic number, because the mean of its divisors is an integer number (581502).

2^1163003 is an apocalyptic number.

1163003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163003 is an equidigital number, since it uses as much as digits as its factorization.

1163003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1163003 is about 1078.4261680801. The cubic root of 1163003 is about 105.1623490009.

Adding to 1163003 its reverse (3003611), we get a palindrome (4166614).

The spelling of 1163003 in words is "one million, one hundred sixty-three thousand, three".