1131532512 has 96 divisors (see below), whose sum is σ = 3430957824. Its totient is φ = 322713600.

The previous prime is 1131532511. The next prime is 1131532537. The reversal of 1131532512 is 2152351311.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131532511) 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, 13564 + ... + 49467.

It is an arithmetic number, because the mean of its divisors is an integer number (35739144).

Almost surely, 2^1131532512 is an apocalyptic number.

1131532512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1131532512 is an abundant number, since it is smaller than the sum of its proper divisors (2299425312).

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

1131532512 is a wasteful number, since it uses less digits than its factorization.

1131532512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63072 (or 63064 counting only the distinct ones).

The product of its digits is 900, while the sum is 24.

The square root of 1131532512 is about 33638.2596458259. The cubic root of 1131532512 is about 1042.0510902432.

Adding to 1131532512 its reverse (2152351311), we get a palindrome (3283883823).

The spelling of 1131532512 in words is "one billion, one hundred thirty-one million, five hundred thirty-two thousand, five hundred twelve".