1163440163 has 4 divisors (see below), whose sum is σ = 1164342648. Its totient is φ = 1162537680.

The previous prime is 1163440141. The next prime is 1163440171. The reversal of 1163440163 is 3610443611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1163440163 - 2¹² = 1163436067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1163440363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449306 + ... + 451887.

It is an arithmetic number, because the mean of its divisors is an integer number (291085662).

Almost surely, 2^1163440163 is an apocalyptic number.

1163440163 is a deficient number, since it is larger than the sum of its proper divisors (902485).

1163440163 is an equidigital number, since it uses as much as digits as its factorization.

1163440163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902484.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1163440163 is about 34109.2386751742. The cubic root of 1163440163 is about 1051.7552389634.

Adding to 1163440163 its reverse (3610443611), we get a palindrome (4773883774).

The spelling of 1163440163 in words is "one billion, one hundred sixty-three million, four hundred forty thousand, one hundred sixty-three".