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2127 = 3709

2127 has 4 divisors (see below), whose sum is σ = 2840. Its totient is φ = 1416.

The previous prime is 2113. The next prime is 2129. The reversal of 2127 is 7212.

2127 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 is not a de Polignac number, because 2127 - 24 = 2111 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

2127 is a modest number, since divided by 27 gives 21 as remainder.

2127 is a lucky number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129) 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, 352 + ... + 357.

It is an arithmetic number, because the mean of its divisors is an integer number (710).

2127 is a deficient number, since it is larger than the sum of its proper divisors (713).

2127 is an equidigital number, since it uses as much as digits as its factorization.

2127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712.

The product of its digits is 28, while the sum is 12.

The square root of 2127 is about 46.1194102304. The cubic root of 2127 is about 12.8604400715.

Adding to 2127 its reverse (7212), we get a palindrome (9339).

The spelling of 2127 in words is "two thousand, one hundred twenty-seven", and thus it is an iban number.

Divisors: 1 3 709 2127