2162269 has 4 divisors (see below), whose sum is σ = 2236860. Its totient is φ = 2087680.

The previous prime is 2162263. The next prime is 2162273. The reversal of 2162269 is 9622612.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1188100 + 974169 = 1090^2 + 987^2 .

It is a cyclic number.

It is not a de Polignac number, because 2162269 - 2¹³ = 2154077 is a prime.

It is a super-3 number, since 3×2162269³ = 30328464336782733327, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

2162269 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162263) 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 3 ways as a sum of consecutive naturals, for example, 37252 + ... + 37309.

It is an arithmetic number, because the mean of its divisors is an integer number (559215).

2^2162269 is an apocalyptic number.

2162269 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2162269 is a deficient number, since it is larger than the sum of its proper divisors (74591).

2162269 is an equidigital number, since it uses as much as digits as its factorization.

2162269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74590.

The product of its digits is 2592, while the sum is 28.

The square root of 2162269 is about 1470.4655725314. The cubic root of 2162269 is about 129.3113286391.

It can be divided in two parts, 216 and 2269, that added together give a triangular number (2485 = T₇₀).

The spelling of 2162269 in words is "two million, one hundred sixty-two thousand, two hundred sixty-nine".