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2174 = 21087
BaseRepresentation
bin100001111110
32222112
4201332
532144
614022
76224
oct4176
92875
102174
1116a7
121312
13cb3
14b14
1599e
hex87e

2174 has 4 divisors (see below), whose sum is σ = 3264. Its totient is φ = 1086.

The previous prime is 2161. The next prime is 2179. The reversal of 2174 is 4712.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a plaindrome in base 15.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2179) by changing a digit.

2174 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542 + ... + 545.

It is an arithmetic number, because the mean of its divisors is an integer number (816).

2174 is a deficient number, since it is larger than the sum of its proper divisors (1090).

2174 is a wasteful number, since it uses less digits than its factorization.

2174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089.

The product of its digits is 56, while the sum is 14.

The square root of 2174 is about 46.6261729075. The cubic root of 2174 is about 12.9544758757.

Adding to 2174 its reverse (4712), we get a palindrome (6886).

It can be divided in two parts, 217 and 4, that multiplied together give a palindrome (868).

The spelling of 2174 in words is "two thousand, one hundred seventy-four", and thus it is an iban number.

Divisors: 1 2 1087 2174