165054913 has 2 divisors, whose sum is σ = 165054914. Its totient is φ = 165054912.

The previous prime is 165054823. The next prime is 165054931. The reversal of 165054913 is 319450561.

Together with next prime (165054931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156575169 + 8479744 = 12513^2 + 2912^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165054913 is a prime.

It is not a weakly prime, because it can be changed into another prime (165054613) 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, 82527456 + 82527457.

It is an arithmetic number, because the mean of its divisors is an integer number (82527457).

Almost surely, 2^165054913 is an apocalyptic number.

It is an amenable number.

165054913 is a deficient number, since it is larger than the sum of its proper divisors (1).

165054913 is an equidigital number, since it uses as much as digits as its factorization.

165054913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 165054913 is about 12847.3698864787. The cubic root of 165054913 is about 548.5414943899.

The spelling of 165054913 in words is "one hundred sixty-five million, fifty-four thousand, nine hundred thirteen".