115965318 has 64 divisors (see below), whose sum is σ = 271941120. Its totient is φ = 32285952.

The previous prime is 115965253. The next prime is 115965319. The reversal of 115965318 is 813569511.

It is a super-2 number, since 2×115965318² = 26895909957682248, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115965319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 334021 + ... + 334367.

It is an arithmetic number, because the mean of its divisors is an integer number (4249080).

Almost surely, 2^115965318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115965318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135970560).

115965318 is an abundant number, since it is smaller than the sum of its proper divisors (155975802).

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

115965318 is a wasteful number, since it uses less digits than its factorization.

115965318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541.

The product of its digits is 32400, while the sum is 39.

The square root of 115965318 is about 10768.7194224755. The cubic root of 115965318 is about 487.6512866424.

The spelling of 115965318 in words is "one hundred fifteen million, nine hundred sixty-five thousand, three hundred eighteen".