2272169 has 4 divisors (see below), whose sum is σ = 2405844. Its totient is φ = 2138496.

The previous prime is 2272141. The next prime is 2272177. The reversal of 2272169 is 9612722.

2272169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 620944 + 1651225 = 788^2 + 1285^2 .

It is a cyclic number.

It is not a de Polignac number, because 2272169 - 2¹² = 2268073 is a prime.

It is a super-2 number, since 2×2272169² = 10325503929122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66812 + ... + 66845.

It is an arithmetic number, because the mean of its divisors is an integer number (601461).

2^2272169 is an apocalyptic number.

It is an amenable number.

2272169 is a deficient number, since it is larger than the sum of its proper divisors (133675).

2272169 is a wasteful number, since it uses less digits than its factorization.

2272169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133674.

The product of its digits is 3024, while the sum is 29.

The square root of 2272169 is about 1507.3715534002. The cubic root of 2272169 is about 131.4660285149.

The spelling of 2272169 in words is "two million, two hundred seventy-two thousand, one hundred sixty-nine".