134434213 has 2 divisors, whose sum is σ = 134434214. Its totient is φ = 134434212.

The previous prime is 134434193. The next prime is 134434229. The reversal of 134434213 is 312434431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134165889 + 268324 = 11583^2 + 518^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134434213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134434513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67217106 + 67217107.

It is an arithmetic number, because the mean of its divisors is an integer number (67217107).

Almost surely, 2^134434213 is an apocalyptic number.

It is an amenable number.

134434213 is a deficient number, since it is larger than the sum of its proper divisors (1).

134434213 is an equidigital number, since it uses as much as digits as its factorization.

134434213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 25.

The square root of 134434213 is about 11594.5768788688. The cubic root of 134434213 is about 512.2751270445.

Adding to 134434213 its reverse (312434431), we get a palindrome (446868644).

The spelling of 134434213 in words is "one hundred thirty-four million, four hundred thirty-four thousand, two hundred thirteen".