12681385 has 8 divisors (see below), whose sum is σ = 15253056. Its totient is φ = 10121520.

The previous prime is 12681377. The next prime is 12681391. The reversal of 12681385 is 58318621.

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

It is not a de Polignac number, because 12681385 - 2³ = 12681377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12681385.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381 + ... + 5050.

It is an arithmetic number, because the mean of its divisors is an integer number (1906632).

Almost surely, 2^12681385 is an apocalyptic number.

It is an amenable number.

12681385 is a deficient number, since it is larger than the sum of its proper divisors (2571671).

12681385 is an equidigital number, since it uses as much as digits as its factorization.

12681385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5903.

The product of its digits is 11520, while the sum is 34.

The square root of 12681385 is about 3561.0932310177. The cubic root of 12681385 is about 233.1966081080.

The spelling of 12681385 in words is "twelve million, six hundred eighty-one thousand, three hundred eighty-five".