135344023 has 2 divisors, whose sum is σ = 135344024. Its totient is φ = 135344022.

The previous prime is 135344009. The next prime is 135344059. The reversal of 135344023 is 320443531.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135344023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135344063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67672011 + 67672012.

It is an arithmetic number, because the mean of its divisors is an integer number (67672012).

Almost surely, 2^135344023 is an apocalyptic number.

135344023 is a deficient number, since it is larger than the sum of its proper divisors (1).

135344023 is an equidigital number, since it uses as much as digits as its factorization.

135344023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 135344023 is about 11633.7450118180. The cubic root of 135344023 is about 513.4281707146.

Adding to 135344023 its reverse (320443531), we get a palindrome (455787554).

The spelling of 135344023 in words is "one hundred thirty-five million, three hundred forty-four thousand, twenty-three".