12189190 has 16 divisors (see below), whose sum is σ = 23628528. Its totient is φ = 4500576.

The previous prime is 12189181. The next prime is 12189257. The reversal of 12189190 is 9198121.

It is a super-2 number, since 2×12189190² = 297152705712200, which contains 22 as substring.

It is a congruent number.

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, 46752 + ... + 47011.

It is an arithmetic number, because the mean of its divisors is an integer number (1476783).

Almost surely, 2^12189190 is an apocalyptic number.

12189190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12189190 is a deficient number, since it is larger than the sum of its proper divisors (11439338).

12189190 is a wasteful number, since it uses less digits than its factorization.

12189190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93783.

The product of its (nonzero) digits is 1296, while the sum is 31.

The square root of 12189190 is about 3491.3020493793. The cubic root of 12189190 is about 230.1397386498.

The spelling of 12189190 in words is "twelve million, one hundred eighty-nine thousand, one hundred ninety".