1095808609 has 9 divisors (see below), whose sum is σ = 1274985747. Its totient is φ = 939065904.

The previous prime is 1095808607. The next prime is 1095808639. The reversal of 1095808609 is 9068085901.

The square root of 1095808609 is 33103.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 22591009 + 1073217600 = 4753^2 + 32760^2 .

It is not a de Polignac number, because 1095808609 - 2¹ = 1095808607 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1095808607) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 229357 + ... + 234085.

It is an arithmetic number, because the mean of its divisors is an integer number (141665083).

Almost surely, 2^1095808609 is an apocalyptic number.

1095808609 is the 33103-rd square number.

1095808609 is the 16552-nd centered octagonal number.

It is an amenable number.

1095808609 is a deficient number, since it is larger than the sum of its proper divisors (179177138).

1095808609 is an frugal number, since it uses more digits than its factorization.

1095808609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9472 (or 4736 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 46.

The cubic root of 1095808609 is about 1030.9673285908.

The spelling of 1095808609 in words is "one billion, ninety-five million, eight hundred eight thousand, six hundred nine".