Search a number
BaseRepresentation
bin100001011101
32221022
4201131
532031
613525
76146
oct4135
92838
102141
111677
1212a5
13c89
14acd
1597b
hex85d

2141 has 2 divisors, whose sum is σ = 2142. Its totient is φ = 2140.

The previous prime is 2137. The next prime is 2143. The reversal of 2141 is 1412.

Adding to 2141 its reverse (1412), we get a palindrome (3553).

Subtracting from 2141 its reverse (1412), we obtain a 6-th power (729 = 36).

It can be divided in two parts, 21 and 41, that multiplied together give a triangular number (861 = T41).

2141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2116 + 25 = 46^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 2141 - 22 = 2137 is a prime.

It is a Sophie Germain prime.

Together with 2143, it forms a pair of twin primes.

It is a Chen prime.

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

It is a Curzon number.

It is equal to p323 and since 2141 and 323 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 11 and base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070 + 1071.

It is an arithmetic number, because the mean of its divisors is an integer number (1071).

It is an amenable number.

2141 is a deficient number, since it is larger than the sum of its proper divisors (1).

2141 is an equidigital number, since it uses as much as digits as its factorization.

2141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8, while the sum is 8.

The square root of 2141 is about 46.2709412050. The cubic root of 2141 is about 12.8885943695. Note that the first 3 decimals are identical.

The spelling of 2141 in words is "two thousand, one hundred forty-one", and thus it is an iban number.