1163540532 has 48 divisors (see below), whose sum is σ = 3384847872. Its totient is φ = 302218080.

The previous prime is 1163540531. The next prime is 1163540551. The reversal of 1163540532 is 2350453611.

It is a self number, because there is not a number n which added to its sum of digits gives 1163540532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163540531) 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, 628698 + ... + 630545.

It is an arithmetic number, because the mean of its divisors is an integer number (70517664).

Almost surely, 2^1163540532 is an apocalyptic number.

1163540532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1163540532 is an abundant number, since it is smaller than the sum of its proper divisors (2221307340).

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

1163540532 is a wasteful number, since it uses less digits than its factorization.

1163540532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259268 (or 1259266 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 1163540532 is about 34110.7099310466. The cubic root of 1163540532 is about 1051.7854827723.

The spelling of 1163540532 in words is "one billion, one hundred sixty-three million, five hundred forty thousand, five hundred thirty-two".