134330213 has 2 divisors, whose sum is σ = 134330214. Its totient is φ = 134330212.

The previous prime is 134330191. The next prime is 134330221. The reversal of 134330213 is 312033431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134142724 + 187489 = 11582^2 + 433^2 .

It is a cyclic number.

It is not a de Polignac number, because 134330213 - 2⁶ = 134330149 is a prime.

It is a super-2 number, since 2×134330213² = 36089212249250738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134330263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67165106 + 67165107.

It is an arithmetic number, because the mean of its divisors is an integer number (67165107).

Almost surely, 2^134330213 is an apocalyptic number.

It is an amenable number.

134330213 is a deficient number, since it is larger than the sum of its proper divisors (1).

134330213 is an equidigital number, since it uses as much as digits as its factorization.

134330213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 134330213 is about 11590.0911558106. The cubic root of 134330213 is about 512.1429921352.

Adding to 134330213 its reverse (312033431), we get a palindrome (446363644).

The spelling of 134330213 in words is "one hundred thirty-four million, three hundred thirty thousand, two hundred thirteen".