12501 has 8 divisors (see below), whose sum is σ = 18560. Its totient is φ = 8316.

The previous prime is 12497. The next prime is 12503. The reversal of 12501 is 10521.

It is a happy number.

12501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12501 - 2² = 12497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

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

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12503) 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 7 ways as a sum of consecutive naturals, for example, 205 + ... + 258.

It is an arithmetic number, because the mean of its divisors is an integer number (2320).

2¹²⁵⁰¹ is an apocalyptic number.

It is an amenable number.

12501 is a deficient number, since it is larger than the sum of its proper divisors (6059).

12501 is an equidigital number, since it uses as much as digits as its factorization.

12501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 12501 is about 111.8078709215. The cubic root of 12501 is about 23.2085630301.

The spelling of 12501 in words is "twelve thousand, five hundred one".