165008423 has 2 divisors, whose sum is σ = 165008424. Its totient is φ = 165008422.

The previous prime is 165008401. The next prime is 165008449. The reversal of 165008423 is 324800561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165008423 - 2⁶ = 165008359 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165008453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82504211 + 82504212.

It is an arithmetic number, because the mean of its divisors is an integer number (82504212).

Almost surely, 2^165008423 is an apocalyptic number.

165008423 is a deficient number, since it is larger than the sum of its proper divisors (1).

165008423 is an equidigital number, since it uses as much as digits as its factorization.

165008423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 165008423 is about 12845.5604393113. The cubic root of 165008423 is about 548.4899881199.

Adding to 165008423 its reverse (324800561), we get a palindrome (489808984).

The spelling of 165008423 in words is "one hundred sixty-five million, eight thousand, four hundred twenty-three".