12006530 has 16 divisors (see below), whose sum is σ = 21727224. Its totient is φ = 4776960.

The previous prime is 12006523. The next prime is 12006541. The reversal of 12006530 is 3560021.

It can be written as a sum of positive squares in 4 ways, for example, as 4721929 + 7284601 = 2173^2 + 2699^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12006499 and 12006508.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1181 + ... + 5040.

Almost surely, 2^12006530 is an apocalyptic number.

12006530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12006530 is a deficient number, since it is larger than the sum of its proper divisors (9720694).

12006530 is a wasteful number, since it uses less digits than its factorization.

12006530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6421.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 12006530 is about 3465.0440112645. The cubic root of 12006530 is about 228.9843686692.

Adding to 12006530 its reverse (3560021), we get a palindrome (15566551).

The spelling of 12006530 in words is "twelve million, six thousand, five hundred thirty".