12699213 has 4 divisors (see below), whose sum is σ = 16932288. Its totient is φ = 8466140.

The previous prime is 12699209. The next prime is 12699223. The reversal of 12699213 is 31299621.

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: 31299621 = 3 ⋅10433207.

It is a cyclic number.

It is not a de Polignac number, because 12699213 - 2² = 12699209 is a prime.

It is a super-2 number, since 2×12699213² = 322540021638738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12699223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2116533 + ... + 2116538.

It is an arithmetic number, because the mean of its divisors is an integer number (4233072).

Almost surely, 2^12699213 is an apocalyptic number.

It is an amenable number.

12699213 is a deficient number, since it is larger than the sum of its proper divisors (4233075).

12699213 is an equidigital number, since it uses as much as digits as its factorization.

12699213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4233074.

The product of its digits is 5832, while the sum is 33.

The square root of 12699213 is about 3563.5955157677. The cubic root of 12699213 is about 233.3058359887.

The spelling of 12699213 in words is "twelve million, six hundred ninety-nine thousand, two hundred thirteen".