1132781751 has 24 divisors (see below), whose sum is σ = 1692621840. Its totient is φ = 729461376.

The previous prime is 1132781747. The next prime is 1132781813. The reversal of 1132781751 is 1571872311.

It is not a de Polignac number, because 1132781751 - 2² = 1132781747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132781851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34051 + ... + 58523.

It is an arithmetic number, because the mean of its divisors is an integer number (70525910).

Almost surely, 2^1132781751 is an apocalyptic number.

1132781751 is a deficient number, since it is larger than the sum of its proper divisors (559840089).

1132781751 is a wasteful number, since it uses less digits than its factorization.

1132781751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24655 (or 24652 counting only the distinct ones).

The product of its digits is 11760, while the sum is 36.

The square root of 1132781751 is about 33656.8232458145. The cubic root of 1132781751 is about 1042.4344323271.

The spelling of 1132781751 in words is "one billion, one hundred thirty-two million, seven hundred eighty-one thousand, seven hundred fifty-one".