12191074 has 32 divisors (see below), whose sum is σ = 22329216. Its totient is φ = 4872960.

The previous prime is 12191051. The next prime is 12191077. The reversal of 12191074 is 47019121.

It is not an unprimeable number, because it can be changed into a prime (12191077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42937 + ... + 43219.

It is an arithmetic number, because the mean of its divisors is an integer number (697788).

Almost surely, 2^12191074 is an apocalyptic number.

12191074 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12191074 is a deficient number, since it is larger than the sum of its proper divisors (10138142).

12191074 is a wasteful number, since it uses less digits than its factorization.

12191074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 12191074 is about 3491.5718523324. The cubic root of 12191074 is about 230.1515950824.

The spelling of 12191074 in words is "twelve million, one hundred ninety-one thousand, seventy-four".