115530 has 16 divisors (see below), whose sum is σ = 277344. Its totient is φ = 30800.

The previous prime is 115523. The next prime is 115547. The reversal of 115530 is 35511.

115530 = 150² + 151² + ... + 154².

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 115530.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1896 + ... + 1955.

It is an arithmetic number, because the mean of its divisors is an integer number (17334).

2¹¹⁵⁵³⁰ is an apocalyptic number.

115530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115530 is an abundant number, since it is smaller than the sum of its proper divisors (161814).

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

115530 is a wasteful number, since it uses less digits than its factorization.

115530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3861.

The product of its (nonzero) digits is 75, while the sum is 15.

The square root of 115530 is about 339.8970432352. The cubic root of 115530 is about 48.7040329362.

The spelling of 115530 in words is "one hundred fifteen thousand, five hundred thirty".