12503171 has 8 divisors (see below), whose sum is σ = 12751200. Its totient is φ = 12257280.

The previous prime is 12503167. The next prime is 12503201. The reversal of 12503171 is 17130521.

12503171 is digitally balanced in base 2 and base 3, because in such bases 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 12503171 - 2² = 12503167 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12503131) 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, 15875 + ... + 16643.

It is an arithmetic number, because the mean of its divisors is an integer number (1593900).

Almost surely, 2^12503171 is an apocalyptic number.

12503171 is a deficient number, since it is larger than the sum of its proper divisors (248029).

12503171 is an equidigital number, since it uses as much as digits as its factorization.

12503171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 12503171 is about 3535.9823246165. The cubic root of 12503171 is about 232.0990646590.

Adding to 12503171 its reverse (17130521), we get a palindrome (29633692).

The spelling of 12503171 in words is "twelve million, five hundred three thousand, one hundred seventy-one".