135228323 has 2 divisors, whose sum is σ = 135228324. Its totient is φ = 135228322.

The previous prime is 135228283. The next prime is 135228341. The reversal of 135228323 is 323822531.

It is a happy number.

135228323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (323822531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135228323 - 2¹⁴ = 135211939 is a prime.

It is not a weakly prime, because it can be changed into another prime (135228383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67614161 + 67614162.

It is an arithmetic number, because the mean of its divisors is an integer number (67614162).

Almost surely, 2^135228323 is an apocalyptic number.

135228323 is a deficient number, since it is larger than the sum of its proper divisors (1).

135228323 is an equidigital number, since it uses as much as digits as its factorization.

135228323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 135228323 is about 11628.7713452454. The cubic root of 135228323 is about 513.2818261789.

The spelling of 135228323 in words is "one hundred thirty-five million, two hundred twenty-eight thousand, three hundred twenty-three".