1143191484 has 108 divisors (see below), whose sum is σ = 3046792840. Its totient is φ = 361307520.

The previous prime is 1143191477. The next prime is 1143191573. The reversal of 1143191484 is 4841913411.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1846527 + ... + 1847145.

Almost surely, 2^1143191484 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 1143191484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1523396420).

1143191484 is an abundant number, since it is smaller than the sum of its proper divisors (1903601356).

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

1143191484 is a wasteful number, since it uses less digits than its factorization.

1143191484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748 (or 714 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 1143191484 is about 33811.1147997223. The cubic root of 1143191484 is about 1045.6178619132.

The spelling of 1143191484 in words is "one billion, one hundred forty-three million, one hundred ninety-one thousand, four hundred eighty-four".