165101329 has 2 divisors, whose sum is σ = 165101330. Its totient is φ = 165101328.

The previous prime is 165101327. The next prime is 165101353. The reversal of 165101329 is 923101561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163251729 + 1849600 = 12777^2 + 1360^2 .

It is an emirp because it is prime and its reverse (923101561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165101329 - 2¹ = 165101327 is a prime.

Together with 165101327, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 165101297 and 165101306.

It is not a weakly prime, because it can be changed into another prime (165101327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82550664 + 82550665.

It is an arithmetic number, because the mean of its divisors is an integer number (82550665).

Almost surely, 2^165101329 is an apocalyptic number.

It is an amenable number.

165101329 is a deficient number, since it is larger than the sum of its proper divisors (1).

165101329 is an equidigital number, since it uses as much as digits as its factorization.

165101329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 165101329 is about 12849.1761992744. The cubic root of 165101329 is about 548.5929090277.

The spelling of 165101329 in words is "one hundred sixty-five million, one hundred one thousand, three hundred twenty-nine".