12975213 has 4 divisors (see below), whose sum is σ = 17300288. Its totient is φ = 8650140.

The previous prime is 12975211. The next prime is 12975217. The reversal of 12975213 is 31257921.

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: 31257921 = 3 ⋅10419307.

It is not a de Polignac number, because 12975213 - 2¹ = 12975211 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12975211) 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, 2162533 + ... + 2162538.

It is an arithmetic number, because the mean of its divisors is an integer number (4325072).

Almost surely, 2^12975213 is an apocalyptic number.

It is an amenable number.

12975213 is a deficient number, since it is larger than the sum of its proper divisors (4325075).

12975213 is an equidigital number, since it uses as much as digits as its factorization.

12975213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4325074.

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

The square root of 12975213 is about 3602.1122969724. The cubic root of 12975213 is about 234.9839312991.

The spelling of 12975213 in words is "twelve million, nine hundred seventy-five thousand, two hundred thirteen".