116538 has 8 divisors (see below), whose sum is σ = 233088. Its totient is φ = 38844.

The previous prime is 116537. The next prime is 116539. The reversal of 116538 is 835611.

It is an interprime number because it is at equal distance from previous prime (116537) and next prime (116539).

It is a sphenic number, since it is the product of 3 distinct primes.

116538 is an admirable number.

It is a super-2 number, since 2×116538² = 27162210888, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (116531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9706 + ... + 9717.

It is an arithmetic number, because the mean of its divisors is an integer number (29136).

2¹¹⁶⁵³⁸ is an apocalyptic number.

116538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

116538 is a wasteful number, since it uses less digits than its factorization.

116538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19428.

The product of its digits is 720, while the sum is 24.

The square root of 116538 is about 341.3766248588. The cubic root of 116538 is about 48.8452706305.

The spelling of 116538 in words is "one hundred sixteen thousand, five hundred thirty-eight".