135079823 has 2 divisors, whose sum is σ = 135079824. Its totient is φ = 135079822.

The previous prime is 135079751. The next prime is 135079829. The reversal of 135079823 is 328970531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135079823 is a prime.

It is a super-2 number, since 2×135079823² = 36493117163422658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135079829) 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, 67539911 + 67539912.

It is an arithmetic number, because the mean of its divisors is an integer number (67539912).

Almost surely, 2^135079823 is an apocalyptic number.

135079823 is a deficient number, since it is larger than the sum of its proper divisors (1).

135079823 is an equidigital number, since it uses as much as digits as its factorization.

135079823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 135079823 is about 11622.3845660002. The cubic root of 135079823 is about 513.0938717930.

The spelling of 135079823 in words is "one hundred thirty-five million, seventy-nine thousand, eight hundred twenty-three".