2112047 has 6 divisors (see below), whose sum is σ = 2456928. Its totient is φ = 1810284.

The previous prime is 2112017. The next prime is 2112053. The reversal of 2112047 is 7402112.

It is not a de Polignac number, because 2112047 - 2¹⁰ = 2111023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21503 + ... + 21600.

It is an arithmetic number, because the mean of its divisors is an integer number (409488).

2^2112047 is an apocalyptic number.

2112047 is a deficient number, since it is larger than the sum of its proper divisors (344881).

2112047 is an equidigital number, since it uses as much as digits as its factorization.

2112047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43117 (or 43110 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 2112047 is about 1453.2883402821. The cubic root of 2112047 is about 128.3023249233.

Adding to 2112047 its reverse (7402112), we get a palindrome (9514159).

The spelling of 2112047 in words is "two million, one hundred twelve thousand, forty-seven".