115165380 has 144 divisors (see below), whose sum is σ = 367335360. Its totient is φ = 26906880.

The previous prime is 115165363. The next prime is 115165387. The reversal of 115165380 is 83561511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (115165387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 210267 + ... + 210813.

It is an arithmetic number, because the mean of its divisors is an integer number (2550940).

Almost surely, 2^115165380 is an apocalyptic number.

115165380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115165380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183667680).

115165380 is an abundant number, since it is smaller than the sum of its proper divisors (252169980).

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

115165380 is a wasteful number, since it uses less digits than its factorization.

115165380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 115165380 is about 10731.5134067847. The cubic root of 115165380 is about 486.5274126714.

The spelling of 115165380 in words is "one hundred fifteen million, one hundred sixty-five thousand, three hundred eighty".