1065826609 has 3 divisors (see below), whose sum is σ = 1065859257. Its totient is φ = 1065793962.

The previous prime is 1065826583. The next prime is 1065826633. The reversal of 1065826609 is 9066285601.

The square root of 1065826609 is 32647.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9066285601 = 233 ⋅38911097.

It is not a de Polignac number, because 1065826609 - 2²³ = 1057438001 is a prime.

It is a super-2 number, since 2×1065826609² = 2271972720904877762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1065826649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 16324 + ... + 48970.

It is an arithmetic number, because the mean of its divisors is an integer number (355286419).

Almost surely, 2^1065826609 is an apocalyptic number.

1065826609 is the 32647-th square number.

1065826609 is the 16324-th centered octagonal number.

It is an amenable number.

1065826609 is a deficient number, since it is larger than the sum of its proper divisors (32648).

1065826609 is an frugal number, since it uses more digits than its factorization.

1065826609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65294 (or 32647 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The cubic root of 1065826609 is about 1021.4776126988.

The spelling of 1065826609 in words is "one billion, sixty-five million, eight hundred twenty-six thousand, six hundred nine".