12030047 has 4 divisors (see below), whose sum is σ = 12072840. Its totient is φ = 11987256.

The previous prime is 12030043. The next prime is 12030049. The reversal of 12030047 is 74003021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12030047 - 2² = 12030043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20972 + ... + 21537.

It is an arithmetic number, because the mean of its divisors is an integer number (3018210).

Almost surely, 2^12030047 is an apocalyptic number.

12030047 is a deficient number, since it is larger than the sum of its proper divisors (42793).

12030047 is an equidigital number, since it uses as much as digits as its factorization.

12030047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42792.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 12030047 is about 3468.4358146000. The cubic root of 12030047 is about 229.1337738502.

Adding to 12030047 its reverse (74003021), we get a palindrome (86033068).

The spelling of 12030047 in words is "twelve million, thirty thousand, forty-seven".