1113530989 has 2 divisors, whose sum is σ = 1113530990. Its totient is φ = 1113530988.

The previous prime is 1113530933. The next prime is 1113531017. The reversal of 1113530989 is 9890353111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1085175364 + 28355625 = 32942^2 + 5325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113530989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113530389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556765494 + 556765495.

It is an arithmetic number, because the mean of its divisors is an integer number (556765495).

Almost surely, 2^1113530989 is an apocalyptic number.

It is an amenable number.

1113530989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113530989 is an equidigital number, since it uses as much as digits as its factorization.

1113530989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 40.

The square root of 1113530989 is about 33369.6117598033. The cubic root of 1113530989 is about 1036.4955357737.

It can be divided in two parts, 11135 and 30989, that added together give a palindrome (42124).

The spelling of 1113530989 in words is "one billion, one hundred thirteen million, five hundred thirty thousand, nine hundred eighty-nine".