165223083 has 4 divisors (see below), whose sum is σ = 220297448. Its totient is φ = 110148720.

The previous prime is 165223067. The next prime is 165223103. The reversal of 165223083 is 380322561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 380322561 = 3 ⋅126774187.

It is not a de Polignac number, because 165223083 - 2⁴ = 165223067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 165223083.

It is not an unprimeable number, because it can be changed into a prime (165224083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27537178 + ... + 27537183.

It is an arithmetic number, because the mean of its divisors is an integer number (55074362).

Almost surely, 2^165223083 is an apocalyptic number.

165223083 is a deficient number, since it is larger than the sum of its proper divisors (55074365).

165223083 is an equidigital number, since it uses as much as digits as its factorization.

165223083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55074364.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 165223083 is about 12853.9131395852. The cubic root of 165223083 is about 548.7277292000.

The spelling of 165223083 in words is "one hundred sixty-five million, two hundred twenty-three thousand, eighty-three".