11530206 has 24 divisors (see below), whose sum is σ = 25119120. Its totient is φ = 3822336.

The previous prime is 11530201. The next prime is 11530219. The reversal of 11530206 is 60203511.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11530201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1815 + ... + 5133.

It is an arithmetic number, because the mean of its divisors is an integer number (1046630).

Almost surely, 2^11530206 is an apocalyptic number.

11530206 is an abundant number, since it is smaller than the sum of its proper divisors (13588914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11530206 is a wasteful number, since it uses less digits than its factorization.

11530206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3520 (or 3517 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 11530206 is about 3395.6157026377. The cubic root of 11530206 is about 225.9153231735.

Adding to 11530206 its reverse (60203511), we get a palindrome (71733717).

The spelling of 11530206 in words is "eleven million, five hundred thirty thousand, two hundred six".