12107985 has 16 divisors (see below), whose sum is σ = 19647360. Its totient is φ = 6366080.

The previous prime is 12107969. The next prime is 12107987. The reversal of 12107985 is 58970121.

It is not a de Polignac number, because 12107985 - 2⁴ = 12107969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12107987) 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, 4620 + ... + 6749.

It is an arithmetic number, because the mean of its divisors is an integer number (1227960).

Almost surely, 2^12107985 is an apocalyptic number.

12107985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12107985 is a deficient number, since it is larger than the sum of its proper divisors (7539375).

12107985 is a wasteful number, since it uses less digits than its factorization.

12107985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11448.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 12107985 is about 3479.6529999412. The cubic root of 12107985 is about 229.6275319868.

The spelling of 12107985 in words is "twelve million, one hundred seven thousand, nine hundred eighty-five".