1135543817 has 6 divisors (see below), whose sum is σ = 1144229898. Its totient is φ = 1126863632.

The previous prime is 1135543811. The next prime is 1135543847. The reversal of 1135543817 is 7183455311.

It can be written as a sum of positive squares in only one way, i.e., 1002925561 + 132618256 = 31669^2 + 11516^2 .

It is not a de Polignac number, because 1135543817 - 2⁸ = 1135543561 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135543811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 392984 + ... + 395862.

It is an arithmetic number, because the mean of its divisors is an integer number (190704983).

Almost surely, 2^1135543817 is an apocalyptic number.

It is an amenable number.

1135543817 is a deficient number, since it is larger than the sum of its proper divisors (8686081).

1135543817 is an frugal number, since it uses more digits than its factorization.

1135543817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5895 (or 3016 counting only the distinct ones).

The product of its digits is 50400, while the sum is 38.

The square root of 1135543817 is about 33697.8310429618. The cubic root of 1135543817 is about 1043.2810018993.

The spelling of 1135543817 in words is "one billion, one hundred thirty-five million, five hundred forty-three thousand, eight hundred seventeen".