115020180 has 108 divisors (see below), whose sum is σ = 383568276. Its totient is φ = 27878400.

The previous prime is 115020151. The next prime is 115020193. The reversal of 115020180 is 81020511.

It can be written as a sum of positive squares in 2 ways, for example, as 27185796 + 87834384 = 5214^2 + 9372^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 19140 + ... + 24420.

Almost surely, 2^115020180 is an apocalyptic number.

115020180 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 115020180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191784138).

115020180 is an abundant number, since it is smaller than the sum of its proper divisors (268548096).

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

115020180 is a wasteful number, since it uses less digits than its factorization.

115020180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5318 (or 5302 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 115020180 is about 10724.7461508420. The cubic root of 115020180 is about 486.3228561451.

Adding to 115020180 its reverse (81020511), we get a palindrome (196040691).

The spelling of 115020180 in words is "one hundred fifteen million, twenty thousand, one hundred eighty".