2112505 has 16 divisors (see below), whose sum is σ = 2779920. Its totient is φ = 1533952.

The previous prime is 2112499. The next prime is 2112511. The reversal of 2112505 is 5052112.

It is an interprime number because it is at equal distance from previous prime (2112499) and next prime (2112511).

It can be written as a sum of positive squares in 8 ways, for example, as 241081 + 1871424 = 491^2 + 1368^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112505 - 2¹³ = 2104313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2037 + ... + 2893.

It is an arithmetic number, because the mean of its divisors is an integer number (173745).

2^2112505 is an apocalyptic number.

It is an amenable number.

2112505 is a deficient number, since it is larger than the sum of its proper divisors (667415).

2112505 is a wasteful number, since it uses less digits than its factorization.

2112505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 2112505 is about 1453.4459054261. The cubic root of 2112505 is about 128.3115984255.

Adding to 2112505 its reverse (5052112), we get a palindrome (7164617).

The spelling of 2112505 in words is "two million, one hundred twelve thousand, five hundred five".