423165 has 8 divisors (see below), whose sum is σ = 677088. Its totient is φ = 225680.

The previous prime is 423133. The next prime is 423173. The reversal of 423165 is 561324.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 423165 - 2⁵ = 423133 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14091 + ... + 14120.

It is an arithmetic number, because the mean of its divisors is an integer number (84636).

2⁴²³¹⁶⁵ is an apocalyptic number.

It is an amenable number.

423165 is a deficient number, since it is larger than the sum of its proper divisors (253923).

423165 is a wasteful number, since it uses less digits than its factorization.

423165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28219.

The product of its digits is 720, while the sum is 21.

The square root of 423165 is about 650.5113373339. The cubic root of 423165 is about 75.0763666598.

Adding to 423165 its reverse (561324), we get a palindrome (984489).

The spelling of 423165 in words is "four hundred twenty-three thousand, one hundred sixty-five".