1131584464 has 20 divisors (see below), whose sum is σ = 2321412804. Its totient is φ = 532510208.

The previous prime is 1131584449. The next prime is 1131584473. The reversal of 1131584464 is 4644851311.

It can be written as a sum of positive squares in 2 ways, for example, as 823230864 + 308353600 = 28692^2 + 17560^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2079847 + ... + 2080390.

Almost surely, 2^1131584464 is an apocalyptic number.

It is an amenable number.

1131584464 is an abundant number, since it is smaller than the sum of its proper divisors (1189828340).

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

1131584464 is a wasteful number, since it uses less digits than its factorization.

1131584464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4160262 (or 4160256 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 1131584464 is about 33639.0318528937. The cubic root of 1131584464 is about 1042.0670378803.

The spelling of 1131584464 in words is "one billion, one hundred thirty-one million, five hundred eighty-four thousand, four hundred sixty-four".