2129213 has 2 divisors, whose sum is σ = 2129214. Its totient is φ = 2129212.

The previous prime is 2129207. The next prime is 2129221. The reversal of 2129213 is 3129212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1315609 + 813604 = 1147^2 + 902^2 .

It is a cyclic number.

It is not a de Polignac number, because 2129213 - 2¹⁴ = 2112829 is a prime.

It is a plaindrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2129203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064606 + 1064607.

It is an arithmetic number, because the mean of its divisors is an integer number (1064607).

2^2129213 is an apocalyptic number.

It is an amenable number.

2129213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2129213 is an equidigital number, since it uses as much as digits as its factorization.

2129213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 20.

The square root of 2129213 is about 1459.1823052655. The cubic root of 2129213 is about 128.6489866562.

Subtracting 2129213 from its reverse (3129212), we obtain a palindrome (999999).

The spelling of 2129213 in words is "two million, one hundred twenty-nine thousand, two hundred thirteen".