135310213 has 4 divisors (see below), whose sum is σ = 135742828. Its totient is φ = 134877600.

The previous prime is 135310193. The next prime is 135310223. The reversal of 135310213 is 312013531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52736644 + 82573569 = 7262^2 + 9087^2 .

It is a cyclic number.

It is not a de Polignac number, because 135310213 - 2¹⁷ = 135179141 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 (135310223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215838 + ... + 216463.

It is an arithmetic number, because the mean of its divisors is an integer number (33935707).

Almost surely, 2^135310213 is an apocalyptic number.

It is an amenable number.

135310213 is a deficient number, since it is larger than the sum of its proper divisors (432615).

135310213 is an equidigital number, since it uses as much as digits as its factorization.

135310213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432614.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 135310213 is about 11632.2918206173. The cubic root of 135310213 is about 513.3854143575.

Adding to 135310213 its reverse (312013531), we get a palindrome (447323744).

The spelling of 135310213 in words is "one hundred thirty-five million, three hundred ten thousand, two hundred thirteen".