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12245 = 53179
BaseRepresentation
bin10111111010101
3121210112
42333111
5342440
6132405
750462
oct27725
917715
1012245
119222
127105
13575c
144669
153965
hex2fd5

12245 has 8 divisors (see below), whose sum is σ = 15360. Its totient is φ = 9360.

The previous prime is 12241. The next prime is 12251. The reversal of 12245 is 54221.

12245 is digitally balanced in base 6, 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 not a de Polignac number, because 12245 - 22 = 12241 is a prime.

It is an Ulam number.

12245 is strictly pandigital in base 6.

It is a plaindrome in base 10 and base 14.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12241) 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, 116 + ... + 194.

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

212245 is an apocalyptic number.

It is an amenable number.

12245 is a deficient number, since it is larger than the sum of its proper divisors (3115).

12245 is an equidigital number, since it uses as much as digits as its factorization.

12245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115.

The product of its digits is 80, while the sum is 14.

The square root of 12245 is about 110.6571281030. The cubic root of 12245 is about 23.0490446823.

Adding to 12245 its reverse (54221), we get a palindrome (66466).

The spelling of 12245 in words is "twelve thousand, two hundred forty-five".

Divisors: 1 5 31 79 155 395 2449 12245