12190985 has 16 divisors (see below), whose sum is σ = 15007872. Its totient is φ = 9504000.

The previous prime is 12190979. The next prime is 12190999. The reversal of 12190985 is 58909121.

It is a de Polignac number, because none of the positive numbers 2^k-12190985 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50465 + ... + 50705.

It is an arithmetic number, because the mean of its divisors is an integer number (937992).

Almost surely, 2^12190985 is an apocalyptic number.

It is an amenable number.

12190985 is a deficient number, since it is larger than the sum of its proper divisors (2816887).

12190985 is a wasteful number, since it uses less digits than its factorization.

12190985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 12190985 is about 3491.5591073330. The cubic root of 12190985 is about 230.1510350130.

The spelling of 12190985 in words is "twelve million, one hundred ninety thousand, nine hundred eighty-five".