1133611968 has 112 divisors (see below), whose sum is σ = 3111658496. Its totient is φ = 363847680.

The previous prime is 1133611961. The next prime is 1133612041. The reversal of 1133611968 is 8691163311.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133611961) 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, 1684080 + ... + 1684752.

Almost surely, 2^1133611968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1133611968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1555829248).

1133611968 is an abundant number, since it is smaller than the sum of its proper divisors (1978046528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1133611968 is a wasteful number, since it uses less digits than its factorization.

1133611968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002 (or 992 counting only the distinct ones).

The product of its digits is 23328, while the sum is 39.

The square root of 1133611968 is about 33669.1545483399. The cubic root of 1133611968 is about 1042.6890372538.

The spelling of 1133611968 in words is "one billion, one hundred thirty-three million, six hundred eleven thousand, nine hundred sixty-eight".