135665323 has 2 divisors, whose sum is σ = 135665324. Its totient is φ = 135665322.

The previous prime is 135665311. The next prime is 135665329. The reversal of 135665323 is 323566531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135665323 - 2⁵ = 135665291 is a prime.

It is not a weakly prime, because it can be changed into another prime (135665329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67832661 + 67832662.

It is an arithmetic number, because the mean of its divisors is an integer number (67832662).

Almost surely, 2^135665323 is an apocalyptic number.

135665323 is a deficient number, since it is larger than the sum of its proper divisors (1).

135665323 is an equidigital number, since it uses as much as digits as its factorization.

135665323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48600, while the sum is 34.

The square root of 135665323 is about 11647.5457929986. The cubic root of 135665323 is about 513.8341339785.

The spelling of 135665323 in words is "one hundred thirty-five million, six hundred sixty-five thousand, three hundred twenty-three".