12861335 has 4 divisors (see below), whose sum is σ = 15433608. Its totient is φ = 10289064.

The previous prime is 12861323. The next prime is 12861337. The reversal of 12861335 is 53316821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53316821 = 617 ⋅86413.

It is a cyclic number.

It is not a de Polignac number, because 12861335 - 2⁴ = 12861319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12861298 and 12861307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12861337) 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, 1286129 + ... + 1286138.

It is an arithmetic number, because the mean of its divisors is an integer number (3858402).

Almost surely, 2^12861335 is an apocalyptic number.

12861335 is a deficient number, since it is larger than the sum of its proper divisors (2572273).

12861335 is an equidigital number, since it uses as much as digits as its factorization.

12861335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572272.

The product of its digits is 4320, while the sum is 29.

The square root of 12861335 is about 3586.2703467530. The cubic root of 12861335 is about 234.2944584885.

The spelling of 12861335 in words is "twelve million, eight hundred sixty-one thousand, three hundred thirty-five".