11609065 has 8 divisors (see below), whose sum is σ = 15002568. Its totient is φ = 8572800.

The previous prime is 11609053. The next prime is 11609069. The reversal of 11609065 is 56090611.

11609065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 157609 + 11451456 = 397^2 + 3384^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11609065 - 2⁵ = 11609033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11609069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89236 + ... + 89365.

It is an arithmetic number, because the mean of its divisors is an integer number (1875321).

Almost surely, 2^11609065 is an apocalyptic number.

It is an amenable number.

11609065 is a deficient number, since it is larger than the sum of its proper divisors (3393503).

11609065 is a wasteful number, since it uses less digits than its factorization.

11609065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178619.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 11609065 is about 3407.2078011181. The cubic root of 11609065 is about 226.4291906844.

Adding to 11609065 its reverse (56090611), we get a palindrome (67699676).

The spelling of 11609065 in words is "eleven million, six hundred nine thousand, sixty-five".