2282161 has 4 divisors (see below), whose sum is σ = 2608192. Its totient is φ = 1956132.

The previous prime is 2282149. The next prime is 2282173. The reversal of 2282161 is 1612822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2282149) and next prime (2282173).

It is a cyclic number.

It is not a de Polignac number, because 2282161 - 2¹⁵ = 2249393 is a prime.

It is a Duffinian number.

2282161 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2282141) 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, 163005 + ... + 163018.

It is an arithmetic number, because the mean of its divisors is an integer number (652048).

2^2282161 is an apocalyptic number.

It is an amenable number.

2282161 is a deficient number, since it is larger than the sum of its proper divisors (326031).

2282161 is an equidigital number, since it uses as much as digits as its factorization.

2282161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326030.

The product of its digits is 384, while the sum is 22.

The square root of 2282161 is about 1510.6822961828. The cubic root of 2282161 is about 131.6584566442.

Adding to 2282161 its reverse (1612822), we get a palindrome (3894983).

The spelling of 2282161 in words is "two million, two hundred eighty-two thousand, one hundred sixty-one".