118216847 has 24 divisors (see below), whose sum is σ = 143485056. Its totient is φ = 95354784.

The previous prime is 118216829. The next prime is 118216853. The reversal of 118216847 is 748612811.

It is a happy number.

It is not a de Polignac number, because 118216847 - 2¹² = 118212751 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118216847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118216867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252908 + ... + 253374.

It is an arithmetic number, because the mean of its divisors is an integer number (5978544).

Almost surely, 2^118216847 is an apocalyptic number.

118216847 is a deficient number, since it is larger than the sum of its proper divisors (25268209).

118216847 is an equidigital number, since it uses as much as digits as its factorization.

118216847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575 (or 546 counting only the distinct ones).

The product of its digits is 21504, while the sum is 38.

The square root of 118216847 is about 10872.7571020418. The cubic root of 118216847 is about 490.7870829488.

The spelling of 118216847 in words is "one hundred eighteen million, two hundred sixteen thousand, eight hundred forty-seven".