12027530 has 32 divisors (see below), whose sum is σ = 22486464. Its totient is φ = 4628736.

The previous prime is 12027529. The next prime is 12027539. The reversal of 12027530 is 3572021.

12027530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12027530² = 289322955801800, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12027539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35522 + ... + 35858.

It is an arithmetic number, because the mean of its divisors is an integer number (702702).

Almost surely, 2^12027530 is an apocalyptic number.

12027530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12027530 is a deficient number, since it is larger than the sum of its proper divisors (10458934).

12027530 is a wasteful number, since it uses less digits than its factorization.

12027530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 12027530 is about 3468.0729519432. The cubic root of 12027530 is about 229.1177924791.

Adding to 12027530 its reverse (3572021), we get a palindrome (15599551).

The spelling of 12027530 in words is "twelve million, twenty-seven thousand, five hundred thirty".