165356101 has 2 divisors, whose sum is σ = 165356102. Its totient is φ = 165356100.

The previous prime is 165356063. The next prime is 165356111. The reversal of 165356101 is 101653561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98525476 + 66830625 = 9926^2 + 8175^2 .

It is a cyclic number.

It is not a de Polignac number, because 165356101 - 2¹³ = 165347909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165356101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165356111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82678050 + 82678051.

It is an arithmetic number, because the mean of its divisors is an integer number (82678051).

Almost surely, 2^165356101 is an apocalyptic number.

It is an amenable number.

165356101 is a deficient number, since it is larger than the sum of its proper divisors (1).

165356101 is an equidigital number, since it uses as much as digits as its factorization.

165356101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 165356101 is about 12859.0863205750. The cubic root of 165356101 is about 548.8749464949.

The spelling of 165356101 in words is "one hundred sixty-five million, three hundred fifty-six thousand, one hundred one".