118728616 has 8 divisors (see below), whose sum is σ = 222616170. Its totient is φ = 59364304.

The previous prime is 118728613. The next prime is 118728619. The reversal of 118728616 is 616827811.

It is an interprime number because it is at equal distance from previous prime (118728613) and next prime (118728619).

It can be written as a sum of positive squares in only one way, i.e., 115992900 + 2735716 = 10770^2 + 1654^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (118728611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7420531 + ... + 7420546.

Almost surely, 2^118728616 is an apocalyptic number.

It is an amenable number.

118728616 is a deficient number, since it is larger than the sum of its proper divisors (103887554).

118728616 is a wasteful number, since it uses less digits than its factorization.

118728616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14841083 (or 14841079 counting only the distinct ones).

The product of its digits is 32256, while the sum is 40.

The square root of 118728616 is about 10896.2661494661. The cubic root of 118728616 is about 491.4942806300.

The spelling of 118728616 in words is "one hundred eighteen million, seven hundred twenty-eight thousand, six hundred sixteen".