1133661163 has 16 divisors (see below), whose sum is σ = 1205932320. Its totient is φ = 1062706176.

The previous prime is 1133661161. The next prime is 1133661169. The reversal of 1133661163 is 3611663311.

It is a happy number.

It is not a de Polignac number, because 1133661163 - 2¹ = 1133661161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1133661161) 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, 1189095 + ... + 1190047.

It is an arithmetic number, because the mean of its divisors is an integer number (75370770).

Almost surely, 2^1133661163 is an apocalyptic number.

1133661163 is a deficient number, since it is larger than the sum of its proper divisors (72271157).

1133661163 is a wasteful number, since it uses less digits than its factorization.

1133661163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566.

The product of its digits is 5832, while the sum is 31.

The square root of 1133661163 is about 33669.8851052391. The cubic root of 1133661163 is about 1042.7041201177.

The spelling of 1133661163 in words is "one billion, one hundred thirty-three million, six hundred sixty-one thousand, one hundred sixty-three".