134420213 has 2 divisors, whose sum is σ = 134420214. Its totient is φ = 134420212.

The previous prime is 134420203. The next prime is 134420227. The reversal of 134420213 is 312024431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130347889 + 4072324 = 11417^2 + 2018^2 .

It is a cyclic number.

It is not a de Polignac number, because 134420213 - 2⁴ = 134420197 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134420203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67210106 + 67210107.

It is an arithmetic number, because the mean of its divisors is an integer number (67210107).

Almost surely, 2^134420213 is an apocalyptic number.

It is an amenable number.

134420213 is a deficient number, since it is larger than the sum of its proper divisors (1).

134420213 is an equidigital number, since it uses as much as digits as its factorization.

134420213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 134420213 is about 11593.9731326237. The cubic root of 134420213 is about 512.2573436231.

Adding to 134420213 its reverse (312024431), we get a palindrome (446444644).

The spelling of 134420213 in words is "one hundred thirty-four million, four hundred twenty thousand, two hundred thirteen".