12497213 has 4 divisors (see below), whose sum is σ = 12580128. Its totient is φ = 12414300.

The previous prime is 12497209. The next prime is 12497263. The reversal of 12497213 is 31279421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31279421 = 149 ⋅209929.

It is a cyclic number.

It is not a de Polignac number, because 12497213 - 2² = 12497209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12497263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41231 + ... + 41532.

It is an arithmetic number, because the mean of its divisors is an integer number (3145032).

Almost surely, 2^12497213 is an apocalyptic number.

It is an amenable number.

12497213 is a deficient number, since it is larger than the sum of its proper divisors (82915).

12497213 is an equidigital number, since it uses as much as digits as its factorization.

12497213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82914.

The product of its digits is 3024, while the sum is 29.

The square root of 12497213 is about 3535.1397426410. The cubic root of 12497213 is about 232.0621922545.

The spelling of 12497213 in words is "twelve million, four hundred ninety-seven thousand, two hundred thirteen".