12865901 has 8 divisors (see below), whose sum is σ = 13738560. Its totient is φ = 12019392.

The previous prime is 12865883. The next prime is 12865927. The reversal of 12865901 is 10956821.

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

It is a cyclic number.

It is not a de Polignac number, because 12865901 - 2¹⁰ = 12864877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12865001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5516 + ... + 7493.

It is an arithmetic number, because the mean of its divisors is an integer number (1717320).

Almost surely, 2^12865901 is an apocalyptic number.

It is an amenable number.

12865901 is a deficient number, since it is larger than the sum of its proper divisors (872659).

12865901 is a wasteful number, since it uses less digits than its factorization.

12865901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13075.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 12865901 is about 3586.9068847685. The cubic root of 12865901 is about 234.3221814251.

The spelling of 12865901 in words is "twelve million, eight hundred sixty-five thousand, nine hundred one".