135953543 has 12 divisors (see below), whose sum is σ = 150295320. Its totient is φ = 122884080.

The previous prime is 135953527. The next prime is 135953557. The reversal of 135953543 is 345359531.

It is not a de Polignac number, because 135953543 - 2⁴ = 135953527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135953497 and 135953506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135953593) 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 in 11 ways as a sum of consecutive naturals, for example, 18521 + ... + 24797.

It is an arithmetic number, because the mean of its divisors is an integer number (12524610).

Almost surely, 2^135953543 is an apocalyptic number.

135953543 is a deficient number, since it is larger than the sum of its proper divisors (14341777).

135953543 is a wasteful number, since it uses less digits than its factorization.

135953543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6478 (or 6467 counting only the distinct ones).

The product of its digits is 121500, while the sum is 38.

The square root of 135953543 is about 11659.9117921192. The cubic root of 135953543 is about 514.1977555664.

The spelling of 135953543 in words is "one hundred thirty-five million, nine hundred fifty-three thousand, five hundred forty-three".