2112305 has 8 divisors (see below), whose sum is σ = 2729832. Its totient is φ = 1559808.

The previous prime is 2112263. The next prime is 2112307. The reversal of 2112305 is 5032112.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 185761 + 1926544 = 431^2 + 1388^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2112305 - 2²⁰ = 1063729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2112305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16184 + ... + 16313.

It is an arithmetic number, because the mean of its divisors is an integer number (341229).

2^2112305 is an apocalyptic number.

It is an amenable number.

2112305 is a deficient number, since it is larger than the sum of its proper divisors (617527).

2112305 is a wasteful number, since it uses less digits than its factorization.

2112305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32515.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 2112305 is about 1453.3771017874. The cubic root of 2112305 is about 128.3075490261.

Adding to 2112305 its reverse (5032112), we get a palindrome (7144417).

The spelling of 2112305 in words is "two million, one hundred twelve thousand, three hundred five".