118728164 has 12 divisors (see below), whose sum is σ = 207968124. Its totient is φ = 59308704.

The previous prime is 118728161. The next prime is 118728191. The reversal of 118728164 is 461827811.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 70425664 + 48302500 = 8392^2 + 6950^2 .

It is not an unprimeable number, because it can be changed into a prime (118728161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8819 + ... + 17754.

It is an arithmetic number, because the mean of its divisors is an integer number (17330677).

Almost surely, 2^118728164 is an apocalyptic number.

It is an amenable number.

118728164 is a deficient number, since it is larger than the sum of its proper divisors (89239960).

118728164 is a wasteful number, since it uses less digits than its factorization.

118728164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27694 (or 27692 counting only the distinct ones).

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

The square root of 118728164 is about 10896.2454083964. The cubic root of 118728164 is about 491.4936569228.

The spelling of 118728164 in words is "one hundred eighteen million, seven hundred twenty-eight thousand, one hundred sixty-four".