116605 has 4 divisors (see below), whose sum is σ = 139932. Its totient is φ = 93280.

The previous prime is 116593. The next prime is 116639. The reversal of 116605 is 506611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47961 + 68644 = 219^2 + 262^2 .

It is not a de Polignac number, because 116605 - 2¹³ = 108413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11656 + ... + 11665.

It is an arithmetic number, because the mean of its divisors is an integer number (34983).

2¹¹⁶⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

116605 is a deficient number, since it is larger than the sum of its proper divisors (23327).

116605 is an equidigital number, since it uses as much as digits as its factorization.

116605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23326.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 116605 is about 341.4747428434. The cubic root of 116605 is about 48.8546295411.

The spelling of 116605 in words is "one hundred sixteen thousand, six hundred five".