1131512832 has 66 divisors (see below), whose sum is σ = 3267245358. Its totient is φ = 377167872.

The previous prime is 1131512791. The next prime is 1131512839. The reversal of 1131512832 is 2382151311.

1131512832 is a `hidden beast` number, since 113 + 1 + 512 + 8 + 32 = 666.

It can be written as a sum of positive squares in only one way, i.e., 618218496 + 513294336 = 24864^2 + 22656^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1131512796 and 1131512805.

It is not an unprimeable number, because it can be changed into a prime (1131512839) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52173 + ... + 70604.

Almost surely, 2^1131512832 is an apocalyptic number.

1131512832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1131512832 is an abundant number, since it is smaller than the sum of its proper divisors (2135732526).

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

1131512832 is a wasteful number, since it uses less digits than its factorization.

1131512832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122803 (or 122782 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 1131512832 is about 33637.9671205024. The cubic root of 1131512832 is about 1042.0450489720.

The spelling of 1131512832 in words is "one billion, one hundred thirty-one million, five hundred twelve thousand, eight hundred thirty-two".