2162743 has 4 divisors (see below), whose sum is σ = 2359368. Its totient is φ = 1966120.

The previous prime is 2162737. The next prime is 2162747. The reversal of 2162743 is 3472612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2162743 - 2⁹ = 2162231 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 1 + 6 + 2²¹ + 7 + 4⁸ + 3² .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98296 + ... + 98317.

It is an arithmetic number, because the mean of its divisors is an integer number (589842).

2^2162743 is an apocalyptic number.

2162743 is a deficient number, since it is larger than the sum of its proper divisors (196625).

2162743 is a wasteful number, since it uses less digits than its factorization.

2162743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196624.

The product of its digits is 2016, while the sum is 25.

The square root of 2162743 is about 1470.6267371430. The cubic root of 2162743 is about 129.3207769071.

The spelling of 2162743 in words is "two million, one hundred sixty-two thousand, seven hundred forty-three".