1131132460 has 12 divisors (see below), whose sum is σ = 2375378208. Its totient is φ = 452452976.

The previous prime is 1131132449. The next prime is 1131132461. The reversal of 1131132460 is 642311311.

It is not an unprimeable number, because it can be changed into a prime (1131132461) 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, 28278292 + ... + 28278331.

It is an arithmetic number, because the mean of its divisors is an integer number (197948184).

Almost surely, 2^1131132460 is an apocalyptic number.

1131132460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131132460 is an abundant number, since it is smaller than the sum of its proper divisors (1244245748).

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

1131132460 is a wasteful number, since it uses less digits than its factorization.

1131132460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56556632 (or 56556630 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1131132460 is about 33632.3127364147. The cubic root of 1131132460 is about 1041.9282704519.

Adding to 1131132460 its reverse (642311311), we get a palindrome (1773443771).

The spelling of 1131132460 in words is "one billion, one hundred thirty-one million, one hundred thirty-two thousand, four hundred sixty".