118242194 has 12 divisors (see below), whose sum is σ = 206320734. Its totient is φ = 50675184.

The previous prime is 118242181. The next prime is 118242197. The reversal of 118242194 is 491242811.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 98109025 + 20133169 = 9905^2 + 4487^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 118242194.

It is not an unprimeable number, because it can be changed into a prime (118242197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 603179 + ... + 603374.

Almost surely, 2^118242194 is an apocalyptic number.

118242194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

118242194 is a deficient number, since it is larger than the sum of its proper divisors (88078540).

118242194 is a wasteful number, since it uses less digits than its factorization.

118242194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206569 (or 1206562 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 118242194 is about 10873.9226592799. The cubic root of 118242194 is about 490.8221571691.

The spelling of 118242194 in words is "one hundred eighteen million, two hundred forty-two thousand, one hundred ninety-four".