11509041 has 12 divisors (see below), whose sum is σ = 16197072. Its totient is φ = 7268184.

The previous prime is 11509037. The next prime is 11509049. The reversal of 11509041 is 14090511.

It is not a de Polignac number, because 11509041 - 2² = 11509037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11508999 and 11509017.

It is not an unprimeable number, because it can be changed into a prime (11509049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4231 + ... + 6396.

It is an arithmetic number, because the mean of its divisors is an integer number (1349756).

Almost surely, 2^11509041 is an apocalyptic number.

It is an amenable number.

11509041 is a deficient number, since it is larger than the sum of its proper divisors (4688031).

11509041 is a wasteful number, since it uses less digits than its factorization.

11509041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10668 (or 10649 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 11509041 is about 3392.4977523942. The cubic root of 11509041 is about 225.7770074469. Note that the first 3 decimals are identical.

Adding to 11509041 its reverse (14090511), we get a palindrome (25599552).

The spelling of 11509041 in words is "eleven million, five hundred nine thousand, forty-one".