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BaseRepresentation
bin11000110101111
3122110002
43012233
5401334
6134515
752040
oct30657
918402
1012719
119613
12743b
135a35
1448c7
153b7e
hex31af

12719 has 8 divisors (see below), whose sum is σ = 15360. Its totient is φ = 10296.

The previous prime is 12713. The next prime is 12721. The reversal of 12719 is 91721.

12719 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12719 - 24 = 12703 is a prime.

It is a super-2 number, since 2×127192 = 323545922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122 + ... + 200.

It is an arithmetic number, because the mean of its divisors is an integer number (1920).

212719 is an apocalyptic number.

12719 is a deficient number, since it is larger than the sum of its proper divisors (2641).

12719 is an equidigital number, since it uses as much as digits as its factorization.

12719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109.

The product of its digits is 126, while the sum is 20.

The square root of 12719 is about 112.7785440587. The cubic root of 12719 is about 23.3426946564.

The spelling of 12719 in words is "twelve thousand, seven hundred nineteen".

Divisors: 1 7 23 79 161 553 1817 12719