1263163 has 4 divisors (see below), whose sum is σ = 1378008. Its totient is φ = 1148320.

The previous prime is 1263133. The next prime is 1263173. The reversal of 1263163 is 3613621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3613621 = 11 ⋅328511.

It is a cyclic number.

It is not a de Polignac number, because 1263163 - 2¹³ = 1254971 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1263103) 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 in 3 ways as a sum of consecutive naturals, for example, 57406 + ... + 57427.

It is an arithmetic number, because the mean of its divisors is an integer number (344502).

2^1263163 is an apocalyptic number.

1263163 is a deficient number, since it is larger than the sum of its proper divisors (114845).

1263163 is a wasteful number, since it uses less digits than its factorization.

1263163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114844.

The product of its digits is 648, while the sum is 22.

The square root of 1263163 is about 1123.9052451163. The cubic root of 1263163 is about 108.0985326198.

Adding to 1263163 its reverse (3613621), we get a palindrome (4876784).

The spelling of 1263163 in words is "one million, two hundred sixty-three thousand, one hundred sixty-three".