1163438845 has 4 divisors (see below), whose sum is σ = 1396126620. Its totient is φ = 930751072.

The previous prime is 1163438839. The next prime is 1163438863. The reversal of 1163438845 is 5488343611.

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

It can be written as a sum of positive squares in 2 ways, for example, as 780140761 + 383298084 = 27931^2 + 19578^2 .

It is a cyclic number.

It is not a de Polignac number, because 1163438845 - 2⁵ = 1163438813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116343880 + ... + 116343889.

It is an arithmetic number, because the mean of its divisors is an integer number (349031655).

Almost surely, 2^1163438845 is an apocalyptic number.

It is an amenable number.

1163438845 is a deficient number, since it is larger than the sum of its proper divisors (232687775).

1163438845 is an equidigital number, since it uses as much as digits as its factorization.

1163438845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232687774.

The product of its digits is 276480, while the sum is 43.

The square root of 1163438845 is about 34109.2193548900. The cubic root of 1163438845 is about 1051.7548418039.

The spelling of 1163438845 in words is "one billion, one hundred sixty-three million, four hundred thirty-eight thousand, eight hundred forty-five".