135230213 has 8 divisors (see below), whose sum is σ = 136818720. Its totient is φ = 133646800.

The previous prime is 135230209. The next prime is 135230231. The reversal of 135230213 is 312032531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135230213 - 2² = 135230209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135230203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82718 + ... + 84336.

It is an arithmetic number, because the mean of its divisors is an integer number (17102340).

Almost surely, 2^135230213 is an apocalyptic number.

It is an amenable number.

135230213 is a deficient number, since it is larger than the sum of its proper divisors (1588507).

135230213 is a wasteful number, since it uses less digits than its factorization.

135230213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 135230213 is about 11628.8526089206. The cubic root of 135230213 is about 513.2842174386.

Adding to 135230213 its reverse (312032531), we get a palindrome (447262744).

The spelling of 135230213 in words is "one hundred thirty-five million, two hundred thirty thousand, two hundred thirteen".