135332213 has 2 divisors, whose sum is σ = 135332214. Its totient is φ = 135332212.

The previous prime is 135332203. The next prime is 135332227. The reversal of 135332213 is 312233531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76702564 + 58629649 = 8758^2 + 7657^2 .

It is an emirp because it is prime and its reverse (312233531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135332213 - 2⁶ = 135332149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135332203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67666106 + 67666107.

It is an arithmetic number, because the mean of its divisors is an integer number (67666107).

Almost surely, 2^135332213 is an apocalyptic number.

It is an amenable number.

135332213 is a deficient number, since it is larger than the sum of its proper divisors (1).

135332213 is an equidigital number, since it uses as much as digits as its factorization.

135332213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 23.

The square root of 135332213 is about 11633.2374255836. The cubic root of 135332213 is about 513.4132365172.

Adding to 135332213 its reverse (312233531), we get a palindrome (447565744).

The spelling of 135332213 in words is "one hundred thirty-five million, three hundred thirty-two thousand, two hundred thirteen".