2165754043 has 2 divisors, whose sum is σ = 2165754044. Its totient is φ = 2165754042.

The previous prime is 2165754011. The next prime is 2165754047. The reversal of 2165754043 is 3404575612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2165754043 - 2⁵ = 2165754011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2165753993 and 2165754011.

It is not a weakly prime, because it can be changed into another prime (2165754047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082877021 + 1082877022.

It is an arithmetic number, because the mean of its divisors is an integer number (1082877022).

Almost surely, 2^2165754043 is an apocalyptic number.

2165754043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2165754043 is an equidigital number, since it uses as much as digits as its factorization.

2165754043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 2165754043 is about 46537.6626293156. The cubic root of 2165754043 is about 1293.8076397791.

The spelling of 2165754043 in words is "two billion, one hundred sixty-five million, seven hundred fifty-four thousand, forty-three".