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12471 = 34157

12471 has 4 divisors (see below), whose sum is σ = 16632. Its totient is φ = 8312.

The previous prime is 12457. The next prime is 12473. The reversal of 12471 is 17421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17421 = 35807.

It is a cyclic number.

It is not a de Polignac number, because 12471 - 27 = 12343 is a prime.

It is a super-3 number, since 3×124713 = 5818688289333, which contains 333 as substring.

It is a D-number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 12471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12473) 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, 2076 + ... + 2081.

It is an arithmetic number, because the mean of its divisors is an integer number (4158).

212471 is an apocalyptic number.

12471 is a deficient number, since it is larger than the sum of its proper divisors (4161).

12471 is an equidigital number, since it uses as much as digits as its factorization.

12471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4160.

The product of its digits is 56, while the sum is 15.

The square root of 12471 is about 111.6736316236. The cubic root of 12471 is about 23.1899827939.

Adding to 12471 its reverse (17421), we get a palindrome (29892).

Subtracting 12471 from its reverse (17421), we obtain a triangular number (4950 = T99).

The spelling of 12471 in words is "twelve thousand, four hundred seventy-one", and thus it is an iban number.

Divisors: 1 3 4157 12471