12871261 has 16 divisors (see below), whose sum is σ = 14817600. Its totient is φ = 11075328.

The previous prime is 12871259. The next prime is 12871291. The reversal of 12871261 is 16217821.

12871261 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12871261 - 2¹ = 12871259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12871241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30510 + ... + 30928.

It is an arithmetic number, because the mean of its divisors is an integer number (926100).

Almost surely, 2^12871261 is an apocalyptic number.

It is an amenable number.

12871261 is a deficient number, since it is larger than the sum of its proper divisors (1946339).

12871261 is a wasteful number, since it uses less digits than its factorization.

12871261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588.

The product of its digits is 1344, while the sum is 28.

The square root of 12871261 is about 3587.6539688214. The cubic root of 12871261 is about 234.3547168462.

The spelling of 12871261 in words is "twelve million, eight hundred seventy-one thousand, two hundred sixty-one".