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12461 = 17733
BaseRepresentation
bin11000010101101
3122002112
43002231
5344321
6133405
751221
oct30255
918075
1012461
1193a9
127265
135897
144781
153a5b
hex30ad

12461 has 4 divisors (see below), whose sum is σ = 13212. Its totient is φ = 11712.

The previous prime is 12457. The next prime is 12473. The reversal of 12461 is 16421.

12461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11236 + 1225 = 106^2 + 35^2 .

It is a cyclic number.

It is not a de Polignac number, because 12461 - 22 = 12457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 350 + ... + 383.

It is an arithmetic number, because the mean of its divisors is an integer number (3303).

212461 is an apocalyptic number.

It is an amenable number.

12461 is a deficient number, since it is larger than the sum of its proper divisors (751).

12461 is an equidigital number, since it uses as much as digits as its factorization.

12461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750.

The product of its digits is 48, while the sum is 14.

The square root of 12461 is about 111.6288493177. The cubic root of 12461 is about 23.1837827608.

Adding to 12461 its reverse (16421), we get a palindrome (28882).

The spelling of 12461 in words is "twelve thousand, four hundred sixty-one".

Divisors: 1 17 733 12461