165108311 has 2 divisors, whose sum is σ = 165108312. Its totient is φ = 165108310.

The previous prime is 165108277. The next prime is 165108431. The reversal of 165108311 is 113801561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165108311 - 2⁶ = 165108247 is a prime.

It is a super-2 number, since 2×165108311² = 54521508722545442, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165108011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82554155 + 82554156.

It is an arithmetic number, because the mean of its divisors is an integer number (82554156).

Almost surely, 2^165108311 is an apocalyptic number.

165108311 is a deficient number, since it is larger than the sum of its proper divisors (1).

165108311 is an equidigital number, since it uses as much as digits as its factorization.

165108311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 165108311 is about 12849.4478869716. The cubic root of 165108311 is about 548.6006421003.

Adding to 165108311 its reverse (113801561), we get a palindrome (278909872).

The spelling of 165108311 in words is "one hundred sixty-five million, one hundred eight thousand, three hundred eleven".