12961471 has 2 divisors, whose sum is σ = 12961472. Its totient is φ = 12961470.

The previous prime is 12961469. The next prime is 12961483. The reversal of 12961471 is 17416921.

It is a weak prime.

It is an emirp because it is prime and its reverse (17416921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12961471 - 2¹ = 12961469 is a prime.

It is a super-3 number, since 3×12961471³ (a number of 22 digits) contains 333 as substring.

Together with 12961469, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12962471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6480735 + 6480736.

It is an arithmetic number, because the mean of its divisors is an integer number (6480736).

Almost surely, 2^12961471 is an apocalyptic number.

12961471 is a deficient number, since it is larger than the sum of its proper divisors (1).

12961471 is an equidigital number, since it uses as much as digits as its factorization.

12961471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 31.

The square root of 12961471 is about 3600.2042997586. The cubic root of 12961471 is about 234.9009451251.

The spelling of 12961471 in words is "twelve million, nine hundred sixty-one thousand, four hundred seventy-one".