165201103 has 2 divisors, whose sum is σ = 165201104. Its totient is φ = 165201102.

The previous prime is 165201079. The next prime is 165201119. The reversal of 165201103 is 301102561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165201103 - 2⁹ = 165200591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165204103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82600551 + 82600552.

It is an arithmetic number, because the mean of its divisors is an integer number (82600552).

Almost surely, 2^165201103 is an apocalyptic number.

165201103 is a deficient number, since it is larger than the sum of its proper divisors (1).

165201103 is an equidigital number, since it uses as much as digits as its factorization.

165201103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 165201103 is about 12853.0581185957. The cubic root of 165201103 is about 548.7033952910.

Adding to 165201103 its reverse (301102561), we get a palindrome (466303664).

The spelling of 165201103 in words is "one hundred sixty-five million, two hundred one thousand, one hundred three".