12190918 has 8 divisors (see below), whose sum is σ = 18559512. Its totient is φ = 6004416.

The previous prime is 12190909. The next prime is 12190931. The reversal of 12190918 is 81909121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12190918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45355 + ... + 45622.

It is an arithmetic number, because the mean of its divisors is an integer number (2319939).

Almost surely, 2^12190918 is an apocalyptic number.

12190918 is a deficient number, since it is larger than the sum of its proper divisors (6368594).

12190918 is an equidigital number, since it uses as much as digits as its factorization.

12190918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91046.

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

The square root of 12190918 is about 3491.5495127522. The cubic root of 12190918 is about 230.1506133860.

The spelling of 12190918 in words is "twelve million, one hundred ninety thousand, nine hundred eighteen".