113365 has 16 divisors (see below), whose sum is σ = 161280. Its totient is φ = 74880.

The previous prime is 113363. The next prime is 113371. The reversal of 113365 is 563311.

It is not a de Polignac number, because 113365 - 2¹ = 113363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1396 + ... + 1474.

It is an arithmetic number, because the mean of its divisors is an integer number (10080).

2¹¹³³⁶⁵ is an apocalyptic number.

It is an amenable number.

113365 is a deficient number, since it is larger than the sum of its proper divisors (47915).

113365 is an equidigital number, since it uses as much as digits as its factorization.

113365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132.

The product of its digits is 270, while the sum is 19.

The square root of 113365 is about 336.6971933355. The cubic root of 113365 is about 48.3978791503.

Adding to 113365 its reverse (563311), we get a palindrome (676676).

It can be divided in two parts, 1 and 13365, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 113365 in words is "one hundred thirteen thousand, three hundred sixty-five".