1133143648 has 144 divisors (see below), whose sum is σ = 2838900960. Its totient is φ = 435621888.

The previous prime is 1133143643. The next prime is 1133143663. The reversal of 1133143648 is 8463413311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133143643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1400268 + ... + 1401076.

It is an arithmetic number, because the mean of its divisors is an integer number (19714590).

Almost surely, 2^1133143648 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 1133143648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1419450480).

1133143648 is an abundant number, since it is smaller than the sum of its proper divisors (1705757312).

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

1133143648 is a wasteful number, since it uses less digits than its factorization.

1133143648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889 (or 868 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 1133143648 is about 33662.1990963157. The cubic root of 1133143648 is about 1042.5454315629.

Adding to 1133143648 its reverse (8463413311), we get a palindrome (9596556959).

The spelling of 1133143648 in words is "one billion, one hundred thirty-three million, one hundred forty-three thousand, six hundred forty-eight".