118463865 has 32 divisors (see below), whose sum is σ = 210717696. Its totient is φ = 56436480.

The previous prime is 118463857. The next prime is 118463881. The reversal of 118463865 is 568364811.

It is not a de Polignac number, because 118463865 - 2³ = 118463857 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3754 + ... + 15843.

It is an arithmetic number, because the mean of its divisors is an integer number (6584928).

Almost surely, 2^118463865 is an apocalyptic number.

118463865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118463865 is a deficient number, since it is larger than the sum of its proper divisors (92253831).

118463865 is a wasteful number, since it uses less digits than its factorization.

118463865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19649.

The product of its digits is 138240, while the sum is 42.

The square root of 118463865 is about 10884.1106664716. The cubic root of 118463865 is about 491.1286837283.

The spelling of 118463865 in words is "one hundred eighteen million, four hundred sixty-three thousand, eight hundred sixty-five".