11209065 has 16 divisors (see below), whose sum is σ = 20496768. Its totient is φ = 5124096.

The previous prime is 11209063. The next prime is 11209097. The reversal of 11209065 is 56090211.

11209065 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11209065 - 2¹ = 11209063 is a prime.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (11209061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53272 + ... + 53481.

It is an arithmetic number, because the mean of its divisors is an integer number (1281048).

Almost surely, 2^11209065 is an apocalyptic number.

11209065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11209065 is a deficient number, since it is larger than the sum of its proper divisors (9287703).

11209065 is a wasteful number, since it uses less digits than its factorization.

11209065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106768.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 11209065 is about 3347.9941756222. The cubic root of 11209065 is about 223.7981347291.

Adding to 11209065 its reverse (56090211), we get a palindrome (67299276).

The spelling of 11209065 in words is "eleven million, two hundred nine thousand, sixty-five".