165034423 has 2 divisors, whose sum is σ = 165034424. Its totient is φ = 165034422.

The previous prime is 165034411. The next prime is 165034427. The reversal of 165034423 is 324430561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165034423 - 2¹³ = 165026231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165034391 and 165034400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165034427) 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, 82517211 + 82517212.

It is an arithmetic number, because the mean of its divisors is an integer number (82517212).

Almost surely, 2^165034423 is an apocalyptic number.

165034423 is a deficient number, since it is larger than the sum of its proper divisors (1).

165034423 is an equidigital number, since it uses as much as digits as its factorization.

165034423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 165034423 is about 12846.5724222456. The cubic root of 165034423 is about 548.5187947115.

Adding to 165034423 its reverse (324430561), we get a palindrome (489464984).

The spelling of 165034423 in words is "one hundred sixty-five million, thirty-four thousand, four hundred twenty-three".