1163081133 has 8 divisors (see below), whose sum is σ = 1723083200. Its totient is φ = 775387404.

The previous prime is 1163081099. The next prime is 1163081137. The reversal of 1163081133 is 3311803611.

1163081133 is a `hidden beast` number, since 11 + 630 + 8 + 1 + 13 + 3 = 666.

It is not a de Polignac number, because 1163081133 - 2²¹ = 1160983981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 43077079 = 1163081133 / (1 + 1 + 6 + 3 + 0 + 8 + 1 + 1 + 3 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1163081097 and 1163081106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163081137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21538513 + ... + 21538566.

It is an arithmetic number, because the mean of its divisors is an integer number (215385400).

Almost surely, 2^1163081133 is an apocalyptic number.

It is an amenable number.

1163081133 is a deficient number, since it is larger than the sum of its proper divisors (560002067).

1163081133 is an equidigital number, since it uses as much as digits as its factorization.

1163081133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43077088 (or 43077082 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1163081133 is about 34103.9753254661. The cubic root of 1163081133 is about 1051.6470395776.

Adding to 1163081133 its reverse (3311803611), we get a palindrome (4474884744).

The spelling of 1163081133 in words is "one billion, one hundred sixty-three million, eighty-one thousand, one hundred thirty-three".