2112943 has 8 divisors (see below), whose sum is σ = 2432000. Its totient is φ = 1798200.

The previous prime is 2112937. The next prime is 2112953. The reversal of 2112943 is 3492112.

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 2112943 - 2²¹ = 15791 is a prime.

It is a Duffinian number.

2112943 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112923) 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, 58 + ... + 2056.

It is an arithmetic number, because the mean of its divisors is an integer number (304000).

2^2112943 is an apocalyptic number.

2112943 is a deficient number, since it is larger than the sum of its proper divisors (319057).

2112943 is a wasteful number, since it uses less digits than its factorization.

2112943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157.

The product of its digits is 432, while the sum is 22.

The square root of 2112943 is about 1453.5965740191. The cubic root of 2112943 is about 128.3204657176.

The spelling of 2112943 in words is "two million, one hundred twelve thousand, nine hundred forty-three".