115020 has 60 divisors (see below), whose sum is σ = 365904. Its totient is φ = 30240.

The previous prime is 115019. The next prime is 115021. The reversal of 115020 is 20511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (115019) and next prime (115021).

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 114993 and 115011.

It is not an unprimeable number, because it can be changed into a prime (115021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1585 + ... + 1655.

2¹¹⁵⁰²⁰ is an apocalyptic number.

115020 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 115020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182952).

115020 is an abundant number, since it is smaller than the sum of its proper divisors (250884).

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

115020 is a wasteful number, since it uses less digits than its factorization.

115020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 115020 is about 339.1459862655. The cubic root of 115020 is about 48.6322602456.

Adding to 115020 its reverse (20511), we get a palindrome (135531).

The spelling of 115020 in words is "one hundred fifteen thousand, twenty".