165708043 has 2 divisors, whose sum is σ = 165708044. Its totient is φ = 165708042.

The previous prime is 165707977. The next prime is 165708047. The reversal of 165708043 is 340807561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165708043 - 2²⁵ = 132153611 is a prime.

It is not a weakly prime, because it can be changed into another prime (165708047) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82854021 + 82854022.

It is an arithmetic number, because the mean of its divisors is an integer number (82854022).

Almost surely, 2^165708043 is an apocalyptic number.

165708043 is a deficient number, since it is larger than the sum of its proper divisors (1).

165708043 is an equidigital number, since it uses as much as digits as its factorization.

165708043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 165708043 is about 12872.7636115948. The cubic root of 165708043 is about 549.2640769002.

The spelling of 165708043 in words is "one hundred sixty-five million, seven hundred eight thousand, forty-three".