1089660113 has 2 divisors, whose sum is σ = 1089660114. Its totient is φ = 1089660112.

The previous prime is 1089660083. The next prime is 1089660133. The reversal of 1089660113 is 3110669801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1082936464 + 6723649 = 32908^2 + 2593^2 .

It is a cyclic number.

It is not a de Polignac number, because 1089660113 - 2¹⁴ = 1089643729 is a prime.

It is not a weakly prime, because it can be changed into another prime (1089660133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544830056 + 544830057.

It is an arithmetic number, because the mean of its divisors is an integer number (544830057).

Almost surely, 2^1089660113 is an apocalyptic number.

It is an amenable number.

1089660113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089660113 is an equidigital number, since it uses as much as digits as its factorization.

1089660113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 1089660113 is about 33010.0001969100. Note that the first 3 decimals coincide. The cubic root of 1089660113 is about 1029.0354853759.

The spelling of 1089660113 in words is "one billion, eighty-nine million, six hundred sixty thousand, one hundred thirteen".