12018471 has 8 divisors (see below), whose sum is σ = 16205040. Its totient is φ = 7922112.

The previous prime is 12018437. The next prime is 12018481. The reversal of 12018471 is 17481021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12018471 - 2⁹ = 12017959 is a prime.

It is a super-3 number, since 3×12018471³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12018401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22240 + ... + 22773.

It is an arithmetic number, because the mean of its divisors is an integer number (2025630).

Almost surely, 2^12018471 is an apocalyptic number.

12018471 is a deficient number, since it is larger than the sum of its proper divisors (4186569).

12018471 is an equidigital number, since it uses as much as digits as its factorization.

12018471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45105.

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 12018471 is about 3466.7666491992. The cubic root of 12018471 is about 229.0602550518.

Adding to 12018471 its reverse (17481021), we get a palindrome (29499492).

The spelling of 12018471 in words is "twelve million, eighteen thousand, four hundred seventy-one".