162645169 has 2 divisors, whose sum is σ = 162645170. Its totient is φ = 162645168.

The previous prime is 162645107. The next prime is 162645191. The reversal of 162645169 is 961546261.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141300769 + 21344400 = 11887^2 + 4620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162645169 is a prime.

It is a super-2 number, since 2×162645169² = 52906901998077122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (162640169) 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, 81322584 + 81322585.

It is an arithmetic number, because the mean of its divisors is an integer number (81322585).

Almost surely, 2^162645169 is an apocalyptic number.

It is an amenable number.

162645169 is a deficient number, since it is larger than the sum of its proper divisors (1).

162645169 is an equidigital number, since it uses as much as digits as its factorization.

162645169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 40.

The square root of 162645169 is about 12753.2415095144. The cubic root of 162645169 is about 545.8588920508.

The spelling of 162645169 in words is "one hundred sixty-two million, six hundred forty-five thousand, one hundred sixty-nine".