1131560512 has 112 divisors (see below), whose sum is σ = 2440350720. Its totient is φ = 519321600.

The previous prime is 1131560471. The next prime is 1131560513. The reversal of 1131560512 is 2150651311.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1131560513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4084918 + ... + 4085194.

Almost surely, 2^1131560512 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 1131560512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1220175360).

1131560512 is an abundant number, since it is smaller than the sum of its proper divisors (1308790208).

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

1131560512 is a wasteful number, since it uses less digits than its factorization.

1131560512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 1131560512 is about 33638.6758360076. The cubic root of 1131560512 is about 1042.0596854270.

The spelling of 1131560512 in words is "one billion, one hundred thirty-one million, five hundred sixty thousand, five hundred twelve".