165232423 has 2 divisors, whose sum is σ = 165232424. Its totient is φ = 165232422.

The previous prime is 165232421. The next prime is 165232427. The reversal of 165232423 is 324232561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165232423 - 2¹ = 165232421 is a prime.

It is a super-2 number, since 2×165232423² = 54603507220901858, which contains 22 as substring.

Together with 165232421, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 165232391 and 165232400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165232421) 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, 82616211 + 82616212.

It is an arithmetic number, because the mean of its divisors is an integer number (82616212).

Almost surely, 2^165232423 is an apocalyptic number.

165232423 is a deficient number, since it is larger than the sum of its proper divisors (1).

165232423 is an equidigital number, since it uses as much as digits as its factorization.

165232423 is an odious number, because the sum of its binary digits is odd.

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

The square root of 165232423 is about 12854.2764479375. The cubic root of 165232423 is about 548.7380687972.

Adding to 165232423 its reverse (324232561), we get a palindrome (489464984).

The spelling of 165232423 in words is "one hundred sixty-five million, two hundred thirty-two thousand, four hundred twenty-three".