12106985 has 16 divisors (see below), whose sum is σ = 15930432. Its totient is φ = 8760000.

The previous prime is 12106981. The next prime is 12107003. The reversal of 12106985 is 58960121.

It is not a de Polignac number, because 12106985 - 2² = 12106981 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12106981) 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, 13367 + ... + 14243.

It is an arithmetic number, because the mean of its divisors is an integer number (995652).

Almost surely, 2^12106985 is an apocalyptic number.

It is an amenable number.

12106985 is a deficient number, since it is larger than the sum of its proper divisors (3823447).

12106985 is a wasteful number, since it uses less digits than its factorization.

12106985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144.

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

The square root of 12106985 is about 3479.5093044853. The cubic root of 12106985 is about 229.6212101572.

The spelling of 12106985 in words is "twelve million, one hundred six thousand, nine hundred eighty-five".