135291323 has 2 divisors, whose sum is σ = 135291324. Its totient is φ = 135291322.

The previous prime is 135291311. The next prime is 135291353. The reversal of 135291323 is 323192531.

It is a weak prime.

It is an emirp because it is prime and its reverse (323192531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135291323 - 2¹² = 135287227 is a prime.

It is not a weakly prime, because it can be changed into another prime (135291353) 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, 67645661 + 67645662.

It is an arithmetic number, because the mean of its divisors is an integer number (67645662).

Almost surely, 2^135291323 is an apocalyptic number.

135291323 is a deficient number, since it is larger than the sum of its proper divisors (1).

135291323 is an equidigital number, since it uses as much as digits as its factorization.

135291323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 29.

The square root of 135291323 is about 11631.4798284655. The cubic root of 135291323 is about 513.3615228331.

The spelling of 135291323 in words is "one hundred thirty-five million, two hundred ninety-one thousand, three hundred twenty-three".