118217950 has 24 divisors (see below), whose sum is σ = 221628672. Its totient is φ = 46912320.

The previous prime is 118217947. The next prime is 118217959. The reversal of 118217950 is 59712811.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118217959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2959 + ... + 15658.

It is an arithmetic number, because the mean of its divisors is an integer number (9234528).

Almost surely, 2^118217950 is an apocalyptic number.

118217950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118217950 is a deficient number, since it is larger than the sum of its proper divisors (103410722).

118217950 is a wasteful number, since it uses less digits than its factorization.

118217950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18756 (or 18751 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 34.

The square root of 118217950 is about 10872.8078250285. The cubic root of 118217950 is about 490.7886093429.

The spelling of 118217950 in words is "one hundred eighteen million, two hundred seventeen thousand, nine hundred fifty".