12961671 has 8 divisors (see below), whose sum is σ = 17299200. Its totient is φ = 8632632.

The previous prime is 12961657. The next prime is 12961681. The reversal of 12961671 is 17616921.

12961671 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12961671 - 2⁶ = 12961607 is a prime.

It is a super-2 number, since 2×12961671² = 336009830224482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12961601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3826 + ... + 6368.

It is an arithmetic number, because the mean of its divisors is an integer number (2162400).

Almost surely, 2^12961671 is an apocalyptic number.

12961671 is a deficient number, since it is larger than the sum of its proper divisors (4337529).

12961671 is a wasteful number, since it uses less digits than its factorization.

12961671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4245.

The product of its digits is 4536, while the sum is 33.

The square root of 12961671 is about 3600.2320758529. The cubic root of 12961671 is about 234.9021533200.

The spelling of 12961671 in words is "twelve million, nine hundred sixty-one thousand, six hundred seventy-one".