3126442213 has 2 divisors, whose sum is σ = 3126442214. Its totient is φ = 3126442212.

The previous prime is 3126442199. The next prime is 3126442247. The reversal of 3126442213 is 3122446213.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2199422404 + 927019809 = 46898^2 + 30447^2 .

It is a cyclic number.

It is not a de Polignac number, because 3126442213 - 2⁵ = 3126442181 is a prime.

It is a super-2 number, since 2×3126442213² = 19549281822456674738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3126442283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1563221106 + 1563221107.

It is an arithmetic number, because the mean of its divisors is an integer number (1563221107).

Almost surely, 2^3126442213 is an apocalyptic number.

It is an amenable number.

3126442213 is a deficient number, since it is larger than the sum of its proper divisors (1).

3126442213 is an equidigital number, since it uses as much as digits as its factorization.

3126442213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 28.

The square root of 3126442213 is about 55914.5974947509. The cubic root of 3126442213 is about 1462.2337441904.

Adding to 3126442213 its reverse (3122446213), we get a palindrome (6248888426).

The spelling of 3126442213 in words is "three billion, one hundred twenty-six million, four hundred forty-two thousand, two hundred thirteen".