12973251 has 4 divisors (see below), whose sum is σ = 17297672. Its totient is φ = 8648832.

The previous prime is 12973249. The next prime is 12973253. The reversal of 12973251 is 15237921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15237921 = 3 ⋅5079307.

It is an interprime number because it is at equal distance from previous prime (12973249) and next prime (12973253).

It is not a de Polignac number, because 12973251 - 2¹ = 12973249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12973253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2162206 + ... + 2162211.

It is an arithmetic number, because the mean of its divisors is an integer number (4324418).

Almost surely, 2^12973251 is an apocalyptic number.

12973251 is a deficient number, since it is larger than the sum of its proper divisors (4324421).

12973251 is an equidigital number, since it uses as much as digits as its factorization.

12973251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4324420.

The product of its digits is 3780, while the sum is 30.

The square root of 12973251 is about 3601.8399464718. The cubic root of 12973251 is about 234.9720866197.

The spelling of 12973251 in words is "twelve million, nine hundred seventy-three thousand, two hundred fifty-one".