12520173 has 8 divisors (see below), whose sum is σ = 16728768. Its totient is φ = 8329184.

The previous prime is 12520169. The next prime is 12520201. The reversal of 12520173 is 37102521.

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 12520173 - 2² = 12520169 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12520163) 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, 2640 + ... + 5657.

It is an arithmetic number, because the mean of its divisors is an integer number (2091096).

Almost surely, 2^12520173 is an apocalyptic number.

It is an amenable number.

12520173 is a deficient number, since it is larger than the sum of its proper divisors (4208595).

12520173 is an equidigital number, since it uses as much as digits as its factorization.

12520173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8803.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 12520173 is about 3538.3856488517. The cubic root of 12520173 is about 232.2042209422.

Adding to 12520173 its reverse (37102521), we get a palindrome (49622694).

The spelling of 12520173 in words is "twelve million, five hundred twenty thousand, one hundred seventy-three".