11530156 has 12 divisors (see below), whose sum is σ = 22012200. Its totient is φ = 5240960.

The previous prime is 11530133. The next prime is 11530157. The reversal of 11530156 is 65103511.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (11530157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130981 + ... + 131068.

It is an arithmetic number, because the mean of its divisors is an integer number (1834350).

Almost surely, 2^11530156 is an apocalyptic number.

It is an amenable number.

11530156 is a deficient number, since it is larger than the sum of its proper divisors (10482044).

11530156 is a wasteful number, since it uses less digits than its factorization.

11530156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262064 (or 262062 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 11530156 is about 3395.6083401947. The cubic root of 11530156 is about 225.9149966173.

Adding to 11530156 its reverse (65103511), we get a palindrome (76633667).

The spelling of 11530156 in words is "eleven million, five hundred thirty thousand, one hundred fifty-six".