11820194 has 4 divisors (see below), whose sum is σ = 17730294. Its totient is φ = 5910096.

The previous prime is 11820191. The next prime is 11820199. The reversal of 11820194 is 49102811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11812969 + 7225 = 3437^2 + 85^2 .

It is not an unprimeable number, because it can be changed into a prime (11820191) 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 as a sum of consecutive naturals, namely, 2955047 + ... + 2955050.

Almost surely, 2^11820194 is an apocalyptic number.

11820194 is a deficient number, since it is larger than the sum of its proper divisors (5910100).

11820194 is an equidigital number, since it uses as much as digits as its factorization.

11820194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5910099.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 11820194 is about 3438.0509013102. The cubic root of 11820194 is about 227.7936087527.

The spelling of 11820194 in words is "eleven million, eight hundred twenty thousand, one hundred ninety-four".