1163144369 has 12 divisors (see below), whose sum is σ = 1246558764. Its totient is φ = 1085005824.

The previous prime is 1163144317. The next prime is 1163144371. The reversal of 1163144369 is 9634413611.

It can be written as a sum of positive squares in 6 ways, for example, as 11424400 + 1151719969 = 3380^2 + 33937^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1163144369 is a prime.

It is a super-2 number, since 2×1163144369² = 2705809646272816322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1163144069) 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 in 11 ways as a sum of consecutive naturals, for example, 14849 + ... + 50465.

It is an arithmetic number, because the mean of its divisors is an integer number (103879897).

Almost surely, 2^1163144369 is an apocalyptic number.

It is an amenable number.

1163144369 is a deficient number, since it is larger than the sum of its proper divisors (83414395).

1163144369 is a wasteful number, since it uses less digits than its factorization.

1163144369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35764 (or 35747 counting only the distinct ones).

The product of its digits is 46656, while the sum is 38.

The square root of 1163144369 is about 34104.9024188605. The cubic root of 1163144369 is about 1051.6660983647. Note that the first 3 decimals are identical.

The spelling of 1163144369 in words is "one billion, one hundred sixty-three million, one hundred forty-four thousand, three hundred sixty-nine".