118312016 has 20 divisors (see below), whose sum is σ = 229830900. Its totient is φ = 59000832.

The previous prime is 118312013. The next prime is 118312021. The reversal of 118312016 is 610213811.

It can be written as a sum of positive squares in 2 ways, for example, as 64963600 + 53348416 = 8060^2 + 7304^2 .

It is a junction number, because it is equal to n+sod(n) for n = 118311982 and 118312000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118312013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3281 + ... + 15728.

It is an arithmetic number, because the mean of its divisors is an integer number (11491545).

Almost surely, 2^118312016 is an apocalyptic number.

118312016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

118312016 is a deficient number, since it is larger than the sum of its proper divisors (111518884).

118312016 is a wasteful number, since it uses less digits than its factorization.

118312016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19406 (or 19400 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 118312016 is about 10877.1327104159. The cubic root of 118312016 is about 490.9187482990.

Adding to 118312016 its reverse (610213811), we get a palindrome (728525827).

The spelling of 118312016 in words is "one hundred eighteen million, three hundred twelve thousand, sixteen".