116813 has 4 divisors (see below), whose sum is σ = 117600. Its totient is φ = 116028.

The previous prime is 116803. The next prime is 116819. The reversal of 116813 is 318611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 116813 - 2⁴ = 116797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116819) 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, 95 + ... + 492.

It is an arithmetic number, because the mean of its divisors is an integer number (29400).

2¹¹⁶⁸¹³ is an apocalyptic number.

It is an amenable number.

116813 is a deficient number, since it is larger than the sum of its proper divisors (787).

116813 is an equidigital number, since it uses as much as digits as its factorization.

116813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786.

The product of its digits is 144, while the sum is 20.

The square root of 116813 is about 341.7791684699. The cubic root of 116813 is about 48.8836612485.

It can be divided in two parts, 116 and 813, that added together give a palindrome (929).

The spelling of 116813 in words is "one hundred sixteen thousand, eight hundred thirteen".