165701 has 2 divisors, whose sum is σ = 165702. Its totient is φ = 165700.

The previous prime is 165673. The next prime is 165703. The reversal of 165701 is 107561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160801 + 4900 = 401^2 + 70^2 .

It is a cyclic number.

It is not a de Polignac number, because 165701 - 2¹⁰ = 164677 is a prime.

Together with 165703, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82850 + 82851.

It is an arithmetic number, because the mean of its divisors is an integer number (82851).

2¹⁶⁵⁷⁰¹ is an apocalyptic number.

It is an amenable number.

165701 is a deficient number, since it is larger than the sum of its proper divisors (1).

165701 is an equidigital number, since it uses as much as digits as its factorization.

165701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 165701 is about 407.0638770513. The cubic root of 165701 is about 54.9256295098.

The spelling of 165701 in words is "one hundred sixty-five thousand, seven hundred one".