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12125 = 5397
BaseRepresentation
bin10111101011101
3121122002
42331131
5342000
6132045
750231
oct27535
917562
1012125
119123
127025
135699
1445c1
1538d5
hex2f5d

12125 has 8 divisors (see below), whose sum is σ = 15288. Its totient is φ = 9600.

The previous prime is 12119. The next prime is 12143. The reversal of 12125 is 52121.

Adding to 12125 its reverse (52121), we get a palindrome (64246).

It can be divided in two parts, 121 and 25, that multiplied together give a square (3025 = 552).

12125 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 676 + 11449 = 26^2 + 107^2 .

It is not a de Polignac number, because 12125 - 24 = 12109 is a prime.

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

It is a Duffinian number.

12125 is strictly pandigital in base 6.

It is a Curzon number.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77 + ... + 173.

It is an arithmetic number, because the mean of its divisors is an integer number (1911).

212125 is an apocalyptic number.

It is an amenable number.

12125 is a deficient number, since it is larger than the sum of its proper divisors (3163).

12125 is an frugal number, since it uses more digits than its factorization.

12125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 102 counting only the distinct ones).

The product of its digits is 20, while the sum is 11.

The square root of 12125 is about 110.1135777277. The cubic root of 12125 is about 22.9735044610.

The spelling of 12125 in words is "twelve thousand, one hundred twenty-five".

Divisors: 1 5 25 97 125 485 2425 12125