1131135532 has 12 divisors (see below), whose sum is σ = 2001729240. Its totient is φ = 559212896.

The previous prime is 1131135529. The next prime is 1131135539. The reversal of 1131135532 is 2355311311.

It is a junction number, because it is equal to n+sod(n) for n = 1131135497 and 1131135506.

It is not an unprimeable number, because it can be changed into a prime (1131135539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1588318 + ... + 1589029.

It is an arithmetic number, because the mean of its divisors is an integer number (166810770).

Almost surely, 2^1131135532 is an apocalyptic number.

It is an amenable number.

1131135532 is a deficient number, since it is larger than the sum of its proper divisors (870593708).

1131135532 is a wasteful number, since it uses less digits than its factorization.

1131135532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177440 (or 3177438 counting only the distinct ones).

The product of its digits is 1350, while the sum is 25.

The square root of 1131135532 is about 33632.3584067487. The cubic root of 1131135532 is about 1041.9292136956.

Adding to 1131135532 its reverse (2355311311), we get a palindrome (3486446843).

The spelling of 1131135532 in words is "one billion, one hundred thirty-one million, one hundred thirty-five thousand, five hundred thirty-two".