112405 has 4 divisors (see below), whose sum is σ = 134892. Its totient is φ = 89920.

The previous prime is 112403. The next prime is 112429. The reversal of 112405 is 504211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 504211 = 73 ⋅6907.

It can be written as a sum of positive squares in 2 ways, for example, as 18769 + 93636 = 137^2 + 306^2 .

It is not a de Polignac number, because 112405 - 2¹ = 112403 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112403) 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, 11236 + ... + 11245.

It is an arithmetic number, because the mean of its divisors is an integer number (33723).

2¹¹²⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

112405 is a deficient number, since it is larger than the sum of its proper divisors (22487).

112405 is an equidigital number, since it uses as much as digits as its factorization.

112405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22486.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 112405 is about 335.2685490767. The cubic root of 112405 is about 48.2608770345.

Adding to 112405 its reverse (504211), we get a palindrome (616616).

The spelling of 112405 in words is "one hundred twelve thousand, four hundred five".