118663247 has 4 divisors (see below), whose sum is σ = 125643456. Its totient is φ = 111683040.

The previous prime is 118663229. The next prime is 118663253. The reversal of 118663247 is 742366811.

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

It is a cyclic number.

It is not a de Polignac number, because 118663247 - 2¹⁰ = 118662223 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 118663247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118663267) 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 3 ways as a sum of consecutive naturals, for example, 3490079 + ... + 3490112.

It is an arithmetic number, because the mean of its divisors is an integer number (31410864).

Almost surely, 2^118663247 is an apocalyptic number.

118663247 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

118663247 is a deficient number, since it is larger than the sum of its proper divisors (6980209).

118663247 is an equidigital number, since it uses as much as digits as its factorization.

118663247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6980208.

The product of its digits is 48384, while the sum is 38.

The square root of 118663247 is about 10893.2661309637. The cubic root of 118663247 is about 491.4040625936.

The spelling of 118663247 in words is "one hundred eighteen million, six hundred sixty-three thousand, two hundred forty-seven".