12670213 has 4 divisors (see below), whose sum is σ = 12939840. Its totient is φ = 12400588.

The previous prime is 12670211. The next prime is 12670223. The reversal of 12670213 is 31207621.

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.

It is a cyclic number.

It is not a de Polignac number, because 12670213 - 2¹ = 12670211 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 (12670211) 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, 134743 + ... + 134836.

It is an arithmetic number, because the mean of its divisors is an integer number (3234960).

Almost surely, 2^12670213 is an apocalyptic number.

It is an amenable number.

12670213 is a deficient number, since it is larger than the sum of its proper divisors (269627).

12670213 is an equidigital number, since it uses as much as digits as its factorization.

12670213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269626.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 12670213 is about 3559.5242659659. The cubic root of 12670213 is about 233.1281077578.

Adding to 12670213 its reverse (31207621), we get a palindrome (43877834).

The spelling of 12670213 in words is "twelve million, six hundred seventy thousand, two hundred thirteen".