115984065 has 16 divisors (see below), whose sum is σ = 185732928. Its totient is φ = 61805376.

The previous prime is 115984049. The next prime is 115984069. The reversal of 115984065 is 560489511.

115984065 is a nontrivial binomial coefficient, being equal to C(15231, 2).

It is not a de Polignac number, because 115984065 - 2⁴ = 115984049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115984069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20307 + ... + 25383.

It is an arithmetic number, because the mean of its divisors is an integer number (11608308).

Almost surely, 2^115984065 is an apocalyptic number.

115984065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115984065 is the 15230-th triangular number.

It is an amenable number.

115984065 is a deficient number, since it is larger than the sum of its proper divisors (69748863).

115984065 is a wasteful number, since it uses less digits than its factorization.

115984065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6608.

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 115984065 is about 10769.5898250583. The cubic root of 115984065 is about 487.6775631943.

The spelling of 115984065 in words is "one hundred fifteen million, nine hundred eighty-four thousand, sixty-five".