165097 has 4 divisors (see below), whose sum is σ = 170820. Its totient is φ = 159376.

The previous prime is 165089. The next prime is 165103. The reversal of 165097 is 790561.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 790561 = 197 ⋅4013.

It can be written as a sum of positive squares in 2 ways, for example, as 50176 + 114921 = 224^2 + 339^2 .

It is a cyclic number.

It is not a de Polignac number, because 165097 - 2³ = 165089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2818 + ... + 2875.

It is an arithmetic number, because the mean of its divisors is an integer number (42705).

2¹⁶⁵⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

165097 is a deficient number, since it is larger than the sum of its proper divisors (5723).

165097 is an equidigital number, since it uses as much as digits as its factorization.

165097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5722.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 165097 is about 406.3213014352. The cubic root of 165097 is about 54.8588114236.

The spelling of 165097 in words is "one hundred sixty-five thousand, ninety-seven".