12861293 has 4 divisors (see below), whose sum is σ = 12981600. Its totient is φ = 12740988.

The previous prime is 12861287. The next prime is 12861313. The reversal of 12861293 is 39216821.

12861293 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39216821 = 7 ⋅5602403.

It is a cyclic number.

It is not a de Polignac number, because 12861293 - 2⁶ = 12861229 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 (12861203) 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, 59993 + ... + 60206.

It is an arithmetic number, because the mean of its divisors is an integer number (3245400).

Almost surely, 2^12861293 is an apocalyptic number.

It is an amenable number.

12861293 is a deficient number, since it is larger than the sum of its proper divisors (120307).

12861293 is a wasteful number, since it uses less digits than its factorization.

12861293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120306.

The product of its digits is 5184, while the sum is 32.

The square root of 12861293 is about 3586.2644910826. The cubic root of 12861293 is about 234.2942034508.

The spelling of 12861293 in words is "twelve million, eight hundred sixty-one thousand, two hundred ninety-three".