2118043 has 2 divisors, whose sum is σ = 2118044. Its totient is φ = 2118042.

The previous prime is 2118037. The next prime is 2118049. The reversal of 2118043 is 3408112.

It is a balanced prime because it is at equal distance from previous prime (2118037) and next prime (2118049).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2118043 is a prime.

It is a super-2 number, since 2×2118043² = 8972212299698, which contains 22 as substring.

2118043 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2118043.

It is not a weakly prime, because it can be changed into another prime (2118049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1059021 + 1059022.

It is an arithmetic number, because the mean of its divisors is an integer number (1059022).

2^2118043 is an apocalyptic number.

2118043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2118043 is an equidigital number, since it uses as much as digits as its factorization.

2118043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 2118043 is about 1455.3497861339. The cubic root of 2118043 is about 128.4236249202.

The spelling of 2118043 in words is "two million, one hundred eighteen thousand, forty-three".