12013471 has 2 divisors, whose sum is σ = 12013472. Its totient is φ = 12013470.

The previous prime is 12013459. The next prime is 12013481. The reversal of 12013471 is 17431021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12013471 is a prime.

It is a super-4 number, since 4×12013471⁴ (a number of 29 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12013411) 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 as a sum of consecutive naturals, namely, 6006735 + 6006736.

It is an arithmetic number, because the mean of its divisors is an integer number (6006736).

Almost surely, 2^12013471 is an apocalyptic number.

12013471 is a deficient number, since it is larger than the sum of its proper divisors (1).

12013471 is an equidigital number, since it uses as much as digits as its factorization.

12013471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 12013471 is about 3466.0454411332. The cubic root of 12013471 is about 229.0284856157.

Adding to 12013471 its reverse (17431021), we get a palindrome (29444492).

The spelling of 12013471 in words is "twelve million, thirteen thousand, four hundred seventy-one".