135125782823 has 2 divisors, whose sum is σ = 135125782824. Its totient is φ = 135125782822.

The previous prime is 135125782807. The next prime is 135125782849. The reversal of 135125782823 is 328287521531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135125782823 - 2⁴ = 135125782807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135125784823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67562891411 + 67562891412.

It is an arithmetic number, because the mean of its divisors is an integer number (67562891412).

Almost surely, 2^135125782823 is an apocalyptic number.

135125782823 is a deficient number, since it is larger than the sum of its proper divisors (1).

135125782823 is an equidigital number, since it uses as much as digits as its factorization.

135125782823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 806400, while the sum is 47.

The spelling of 135125782823 in words is "one hundred thirty-five billion, one hundred twenty-five million, seven hundred eighty-two thousand, eight hundred twenty-three".