12091194 has 28 divisors (see below), whose sum is σ = 27196026. Its totient is φ = 4029912.

The previous prime is 12091181. The next prime is 12091241. The reversal of 12091194 is 49119021.

It can be written as a sum of positive squares in only one way, i.e., 11390625 + 700569 = 3375^2 + 837^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 2689 + ... + 5604.

Almost surely, 2^12091194 is an apocalyptic number.

12091194 is an abundant number, since it is smaller than the sum of its proper divisors (15104832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12091194 is an frugal number, since it uses more digits than its factorization.

12091194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8313 (or 8298 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 12091194 is about 3477.2394223004. The cubic root of 12091194 is about 229.5213359633.

The spelling of 12091194 in words is "twelve million, ninety-one thousand, one hundred ninety-four".