345422213 has 2 divisors, whose sum is σ = 345422214. Its totient is φ = 345422212.

The previous prime is 345422183. The next prime is 345422227. The reversal of 345422213 is 312224543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342916324 + 2505889 = 18518^2 + 1583^2 .

It is a cyclic number.

It is not a de Polignac number, because 345422213 - 2²⁸ = 76986757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345422113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172711106 + 172711107.

It is an arithmetic number, because the mean of its divisors is an integer number (172711107).

Almost surely, 2^345422213 is an apocalyptic number.

It is an amenable number.

345422213 is a deficient number, since it is larger than the sum of its proper divisors (1).

345422213 is an equidigital number, since it uses as much as digits as its factorization.

345422213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 26.

The square root of 345422213 is about 18585.5377377142. The cubic root of 345422213 is about 701.6439003402.

Adding to 345422213 its reverse (312224543), we get a palindrome (657646756).

The spelling of 345422213 in words is "three hundred forty-five million, four hundred twenty-two thousand, two hundred thirteen".