11209145 has 8 divisors (see below), whose sum is σ = 14159040. Its totient is φ = 8495280.

The previous prime is 11209139. The next prime is 11209157. The reversal of 11209145 is 54190211.

It is a happy number.

11209145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11209145 - 2²² = 7014841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11209145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58901 + ... + 59090.

It is an arithmetic number, because the mean of its divisors is an integer number (1769880).

Almost surely, 2^11209145 is an apocalyptic number.

It is an amenable number.

11209145 is a deficient number, since it is larger than the sum of its proper divisors (2949895).

11209145 is a wasteful number, since it uses less digits than its factorization.

11209145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118015.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 11209145 is about 3348.0061230529. The cubic root of 11209145 is about 223.7986671496.

Adding to 11209145 its reverse (54190211), we get a palindrome (65399356).

The spelling of 11209145 in words is "eleven million, two hundred nine thousand, one hundred forty-five".