115615984 has 80 divisors (see below), whose sum is σ = 253242720. Its totient is φ = 51110400.

The previous prime is 115615943. The next prime is 115615993. The reversal of 115615984 is 489516511.

It is a super-3 number, since 3×115615984³ (a number of 25 digits) contains 333 as substring.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1299012 + ... + 1299100.

It is an arithmetic number, because the mean of its divisors is an integer number (3165534).

Almost surely, 2^115615984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115615984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126621360).

115615984 is an abundant number, since it is smaller than the sum of its proper divisors (137626736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115615984 is an equidigital number, since it uses as much as digits as its factorization.

115615984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 163 counting only the distinct ones).

The product of its digits is 43200, while the sum is 40.

The square root of 115615984 is about 10752.4873401460. The cubic root of 115615984 is about 487.1611271083.

The spelling of 115615984 in words is "one hundred fifteen million, six hundred fifteen thousand, nine hundred eighty-four".