12190689 has 32 divisors (see below), whose sum is σ = 21047040. Its totient is φ = 6829056.

The previous prime is 12190681. The next prime is 12190691. The reversal of 12190689 is 98609121.

It is not a de Polignac number, because 12190689 - 2³ = 12190681 is a prime.

It is a super-2 number, since 2×12190689² = 297225796589442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12190681) 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 31 ways as a sum of consecutive naturals, for example, 9409 + ... + 10625.

It is an arithmetic number, because the mean of its divisors is an integer number (657720).

Almost surely, 2^12190689 is an apocalyptic number.

It is an amenable number.

12190689 is a deficient number, since it is larger than the sum of its proper divisors (8856351).

12190689 is a wasteful number, since it uses less digits than its factorization.

12190689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286 (or 1280 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 12190689 is about 3491.5167191351. The cubic root of 12190689 is about 230.1491722908.

The spelling of 12190689 in words is "twelve million, one hundred ninety thousand, six hundred eighty-nine".