4272165 has 24 divisors (see below), whose sum is σ = 7469280. Its totient is φ = 2258784.

The previous prime is 4272161. The next prime is 4272167. The reversal of 4272165 is 5612724.

It is not a de Polignac number, because 4272165 - 2² = 4272161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4272161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5914 + ... + 6596.

It is an arithmetic number, because the mean of its divisors is an integer number (311220).

Almost surely, 2^4272165 is an apocalyptic number.

4272165 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4272165 is a deficient number, since it is larger than the sum of its proper divisors (3197115).

4272165 is a wasteful number, since it uses less digits than its factorization.

4272165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833 (or 830 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 4272165 is about 2066.9216240583. The cubic root of 4272165 is about 162.2616940882.

Adding to 4272165 its reverse (5612724), we get a palindrome (9884889).

The spelling of 4272165 in words is "four million, two hundred seventy-two thousand, one hundred sixty-five".