80118194 has 16 divisors (see below), whose sum is σ = 130296600. Its totient is φ = 36727680.

The previous prime is 80118191. The next prime is 80118239. The reversal of 80118194 is 49181108.

It can be written as a sum of positive squares in 4 ways, for example, as 20133169 + 59985025 = 4487^2 + 7745^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80118194.

It is not an unprimeable number, because it can be changed into a prime (80118191) 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 in 7 ways as a sum of consecutive naturals, for example, 6467 + ... + 14214.

Almost surely, 2^80118194 is an apocalyptic number.

80118194 is a deficient number, since it is larger than the sum of its proper divisors (50178406).

80118194 is a wasteful number, since it uses less digits than its factorization.

80118194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20845.

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 80118194 is about 8950.8767168362. The cubic root of 80118194 is about 431.0990346332.

The spelling of 80118194 in words is "eighty million, one hundred eighteen thousand, one hundred ninety-four".