165103 has 2 divisors, whose sum is σ = 165104. Its totient is φ = 165102.

The previous prime is 165089. The next prime is 165133. The reversal of 165103 is 301561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165103 - 2¹⁷ = 34031 is a prime.

165103 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82551 + 82552.

It is an arithmetic number, because the mean of its divisors is an integer number (82552).

2¹⁶⁵¹⁰³ is an apocalyptic number.

165103 is a deficient number, since it is larger than the sum of its proper divisors (1).

165103 is an equidigital number, since it uses as much as digits as its factorization.

165103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 165103 is about 406.3286846877. The cubic root of 165103 is about 54.8594759802.

Adding to 165103 its reverse (301561), we get a palindrome (466664).

The spelling of 165103 in words is "one hundred sixty-five thousand, one hundred three".