8126213 has 2 divisors, whose sum is σ = 8126214. Its totient is φ = 8126212.

The previous prime is 8126203. The next prime is 8126219. The reversal of 8126213 is 3126218.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7171684 + 954529 = 2678^2 + 977^2 .

It is a cyclic number.

It is not a de Polignac number, because 8126213 - 2⁴ = 8126197 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8126219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4063106 + 4063107.

It is an arithmetic number, because the mean of its divisors is an integer number (4063107).

Almost surely, 2^8126213 is an apocalyptic number.

It is an amenable number.

8126213 is a deficient number, since it is larger than the sum of its proper divisors (1).

8126213 is an equidigital number, since it uses as much as digits as its factorization.

8126213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 23.

The square root of 8126213 is about 2850.6513290825. The cubic root of 8126213 is about 201.0462918221.

The spelling of 8126213 in words is "eight million, one hundred twenty-six thousand, two hundred thirteen".