165106027 has 4 divisors (see below), whose sum is σ = 167431536. Its totient is φ = 162780520.

The previous prime is 165106021. The next prime is 165106037. The reversal of 165106027 is 720601561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 720601561 = 18401 ⋅39161.

It is a cyclic number.

It is not a de Polignac number, because 165106027 - 2¹¹ = 165103979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165105986 and 165106004.

It is not an unprimeable number, because it can be changed into a prime (165106021) 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, 1162648 + ... + 1162789.

It is an arithmetic number, because the mean of its divisors is an integer number (41857884).

Almost surely, 2^165106027 is an apocalyptic number.

165106027 is a deficient number, since it is larger than the sum of its proper divisors (2325509).

165106027 is an equidigital number, since it uses as much as digits as its factorization.

165106027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325508.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 165106027 is about 12849.3590112503. The cubic root of 165106027 is about 548.5981124283.

Adding to 165106027 its reverse (720601561), we get a palindrome (885707588).

The spelling of 165106027 in words is "one hundred sixty-five million, one hundred six thousand, twenty-seven".