165419023 has 16 divisors (see below), whose sum is σ = 206528256. Its totient is φ = 128715840.

The previous prime is 165419017. The next prime is 165419029. The reversal of 165419023 is 320914561.

It is an interprime number because it is at equal distance from previous prime (165419017) and next prime (165419029).

It is not a de Polignac number, because 165419023 - 2²¹ = 163321871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165419029) 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 in 15 ways as a sum of consecutive naturals, for example, 85515 + ... + 87427.

It is an arithmetic number, because the mean of its divisors is an integer number (12908016).

Almost surely, 2^165419023 is an apocalyptic number.

165419023 is a deficient number, since it is larger than the sum of its proper divisors (41109233).

165419023 is a wasteful number, since it uses less digits than its factorization.

165419023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 165419023 is about 12861.5326847153. The cubic root of 165419023 is about 548.9445577349.

The spelling of 165419023 in words is "one hundred sixty-five million, four hundred nineteen thousand, twenty-three".