2112971 has 8 divisors (see below), whose sum is σ = 2542080. Its totient is φ = 1715688.

The previous prime is 2112961. The next prime is 2112973. The reversal of 2112971 is 1792112.

2112971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2112971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7811 + ... + 8076.

It is an arithmetic number, because the mean of its divisors is an integer number (317760).

2^2112971 is an apocalyptic number.

2112971 is a deficient number, since it is larger than the sum of its proper divisors (429109).

2112971 is a wasteful number, since it uses less digits than its factorization.

2112971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15913.

The product of its digits is 252, while the sum is 23.

The square root of 2112971 is about 1453.6062052702. The cubic root of 2112971 is about 128.3210325348.

The spelling of 2112971 in words is "two million, one hundred twelve thousand, nine hundred seventy-one".