1132688281 has 8 divisors (see below), whose sum is σ = 1156903560. Its totient is φ = 1108578432.

The previous prime is 1132688279. The next prime is 1132688309. The reversal of 1132688281 is 1828862311.

It can be written as a sum of positive squares in 4 ways, for example, as 421932681 + 710755600 = 20541^2 + 26660^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1132688281 - 2¹ = 1132688279 is a prime.

It is a super-2 number, since 2×1132688281² = 2565965483829469922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1132683281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4450 + ... + 47803.

It is an arithmetic number, because the mean of its divisors is an integer number (144612945).

Almost surely, 2^1132688281 is an apocalyptic number.

It is an amenable number.

1132688281 is a deficient number, since it is larger than the sum of its proper divisors (24215279).

1132688281 is an equidigital number, since it uses as much as digits as its factorization.

1132688281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52715.

The product of its digits is 36864, while the sum is 40.

The square root of 1132688281 is about 33655.4346428627. The cubic root of 1132688281 is about 1042.4057598353.

The spelling of 1132688281 in words is "one billion, one hundred thirty-two million, six hundred eighty-eight thousand, two hundred eighty-one".