1159632163 has 4 divisors (see below), whose sum is σ = 1159722760. Its totient is φ = 1159541568.

The previous prime is 1159632161. The next prime is 1159632179. The reversal of 1159632163 is 3612369511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3612369511 = 157 ⋅23008723.

It is a cyclic number.

It is not a de Polignac number, because 1159632163 - 2¹ = 1159632161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1159632161) 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, 22158 + ... + 53011.

It is an arithmetic number, because the mean of its divisors is an integer number (289930690).

Almost surely, 2^1159632163 is an apocalyptic number.

1159632163 is a deficient number, since it is larger than the sum of its proper divisors (90597).

1159632163 is an equidigital number, since it uses as much as digits as its factorization.

1159632163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90596.

The product of its digits is 29160, while the sum is 37.

The square root of 1159632163 is about 34053.3722705990. The cubic root of 1159632163 is about 1050.6065016078.

The spelling of 1159632163 in words is "one billion, one hundred fifty-nine million, six hundred thirty-two thousand, one hundred sixty-three".