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BaseRepresentation
bin100010111111
310001221
4202333
532424
614211
76346
oct4277
93057
102239
111756
121367
131033
14b5d
159e4
hex8bf

2239 has 2 divisors, whose sum is σ = 2240. Its totient is φ = 2238.

The previous prime is 2237. The next prime is 2243. The reversal of 2239 is 9322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2239 - 21 = 2237 is a prime.

Together with 2237, it forms a pair of twin primes.

2239 is a lucky number.

It is a plaindrome in base 10, base 12 and base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1119 + 1120.

It is an arithmetic number, because the mean of its divisors is an integer number (1120).

22239 is an apocalyptic number.

2239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2239 is an equidigital number, since it uses as much as digits as its factorization.

2239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108, while the sum is 16.

The square root of 2239 is about 47.3180726573. The cubic root of 2239 is about 13.0823178877.

It can be divided in two parts, 223 and 9, that added together give a palindrome (232).

The spelling of 2239 in words is "two thousand, two hundred thirty-nine".