118565 has 8 divisors (see below), whose sum is σ = 148608. Its totient is φ = 90640.

The previous prime is 118549. The next prime is 118571. The reversal of 118565 is 565811.

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

It is not a de Polignac number, because 118565 - 2⁴ = 118549 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 7 ways as a sum of consecutive naturals, for example, 401 + ... + 630.

It is an arithmetic number, because the mean of its divisors is an integer number (18576).

2¹¹⁸⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

118565 is a deficient number, since it is larger than the sum of its proper divisors (30043).

118565 is a wasteful number, since it uses less digits than its factorization.

118565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059.

The product of its digits is 1200, while the sum is 26.

The square root of 118565 is about 344.3326879633. The cubic root of 118565 is about 49.1268406142.

The spelling of 118565 in words is "one hundred eighteen thousand, five hundred sixty-five".