1155434163 has 16 divisors (see below), whose sum is σ = 1660206240. Its totient is φ = 710555904.

The previous prime is 1155434149. The next prime is 1155434167. The reversal of 1155434163 is 3614345511.

It is a happy number.

1155434163 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1155434163 - 2⁹ = 1155433651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1155434167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53545 + ... + 71957.

It is an arithmetic number, because the mean of its divisors is an integer number (103762890).

Almost surely, 2^1155434163 is an apocalyptic number.

1155434163 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1155434163 is a deficient number, since it is larger than the sum of its proper divisors (504772077).

1155434163 is a wasteful number, since it uses less digits than its factorization.

1155434163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20038.

The product of its digits is 21600, while the sum is 33.

The square root of 1155434163 is about 33991.6778491442. The cubic root of 1155434163 is about 1049.3371971193.

Adding to 1155434163 its reverse (3614345511), we get a palindrome (4769779674).

The spelling of 1155434163 in words is "one billion, one hundred fifty-five million, four hundred thirty-four thousand, one hundred sixty-three".